A projectile is launched horizontally at a speed of 40 meters per second from a platform located a vertical distance h above the ground. The projectile strikes the ground after time at horizontal distance from the base of the platform. [Neglect friction.]
Calculate the vertical distance, h, if the projectile's total time of flight is 4.5 seconds. You must show work to earn full credit with the minimum 3 steps:
1. Equation used
2. Substitution with correct units
3. Final answer with correct units
Answers
Answer:1
Explanation:t=rad2h/g
The launch of projectiles allows to find the height of the body launched horizontally is:
The height is 99.2 m
Projectile launching is an application of kinematics where there is no acceleration on the x-axis and the y-axis is the gravity acceleration.
In the attachment we see a diagram of the movement, as the body is thrown horizontally, its initial vertical speed is zero.
y = y₀ + [tex]v_o_y[/tex] t - ½ g t²
Where y, y₀i are the current and initial heights, respectively, [tex]v_{oy}[/tex] the vertical initial velocity, g the acceleration of gravity and t the time.
0 =y₀ + 0 - ½ g t²
y₀ = ½ g t²
let's calculate
y₀ = ½ 9.8 4.5²
y₀ = 99.2 m
y₀ = h = 99.2 m
This is the initial height of the object when it is thrown.
In conclusion using the projectile launch we can find the height of the horizontally launched body is:
The height is 99.2 m
Learn more here: brainly.com/question/10903823
Related Questions
What are indicative acts? FORENSICS
Answers
Answer:
Actions or behaviors that may have taken place before death.
Do you wanna know how I know? No.... You do not wanna know how I know that you know what I known that you know I know
Explanation:
You Know?
1. A plane flying horizontally at an altitude of 490 meters and having a velocity of 250 meters per second east, drops a supply packet to a work crew on the ground. It falls freely without a parachute. [Assume no wind and negligible air resistance.] A. Calculate the time required for the packet to hit the ground. (25 pts)
Answers
Answer:
t = 10 s
Explanation:
Given :
Altitude, h = 490 m
Initial velocity of a plane, u = 250 m/s
To find :
The time required for the packet to hit the ground. When it hits the ground its velocity will be 0. Let t is the required time. It can be calculated as follows :
[tex]t=\sqrt{\dfrac{2h}{g}} \\\\t=\sqrt{\dfrac{2\times 490}{9.8}} \\\\t=10\ s[/tex]
So, it will take 10 s to reach the ground.
Which of the statements are true about the collision of two objects with different
masses based on Newton's laws of motion?
A. Each object experiences an equal and opposite force.
B. The more massive object will exert a greater force on the less massive object.
Each object will accelerate in an opposite direction from the other but at a
different rate.
D. The less massive object will accelerate due to the force of the collision, but the
more massive object will not.
Answers
Answer:
A. TRUE
B. TRUE
C. It depends on the mass of both the objects
D. TRUE
A car enters the freeway with a speed of 6.4 m/s and accelerates uniformly for 3.2 km in 3.5 min. How FAST (m/s) is the car moving after this time?
Answers
if 56 j of work energy is required to lift a dumbbell to a height of 7m, what is the weight of the dumbbell?
Answers
Answer:
8 N
Explanation:
work=force*distance
force=work/distance
=56/7
=8
A car turns from a road into a parking lot and into an available parking space. The car's initial velocity is 4 m/s [E 45° N]. The car's velocity just before the driver decreases speed is 4 m/s [E 10° N]. The turn takes 3s. What's the average acceleration of the car during the turn? The answer should have directions with an angle.
Answers
Answer:
Explanation:
From the given information:
The car's initial velocity = 4 m/s in the direction of east 45° due north
We can therefore express the vector of this component form as:
v₁ = (4 m/s) (cos(45º)i + sin(45º)j)
v₁ = (2.83 m/s)i + (2.83 m/s)j
Similarly, the car's final velocity = 4 m/s in the direction of the east side 10º north
∴
v₂ = (4 m/s) (cos(10º) i + sin(10º) j)
v₂ = (3.94 m/s) i + (0.695 m/s) j
From the first equation of motion
v = u + at
Making acceleration "a" the subject of the formula, we have:
a = (v - u )/t
a = (v₂ - v₁)/t
a = (0.370 m/s²) + (-0.711 m/s²)
The magnitude of the avg. acceleration is:
[tex]|| a||= \sqrt{(0.370 m/s^2)^2 + (-0.711 m/s^2)^2)[/tex]
[tex]|| a||= 0.8015 \ m/s^2[/tex]
And;
The direction can be determined by taking the tangent of the acceleration:
i.e.
[tex]tan(\theta) = \dfrac{-0.711 m/s^2}{ 0.370 m/s^2}[/tex]
[tex]tan(\theta) = -1.9216[/tex]
[tex]\theta = tan^{-1} ( -1.9216 )[/tex]
[tex]\mathbf{\theta = -62.51 ^0}[/tex]
Thus, the direction of the angle is approximately S 62.51º E
How does a jack spread out the work over a large distance?
Answers
answer them all please!!
Answers
Answer:
1. stomach
2. arteries
3. trachea
4. spinal cord
ASAP it’s timed!!
An object has a mass of 5 kg. What force is needed to accelerate it at 6 m/s? (Formula: Fema)
0.89 N
1.2 N
11 N
30 N
Answers
Answer:
30N is the correct answer
Step by step: 30N
Man has never directly reached the inner layers of the Earth. But what phenomena allow to determine its chemical composition?
A)Surface wave propagation.
B)Plate displacement
C)Emanation of lava in volcanoes
D)Changes in the Earth's landscape
E)Waves formed in tidal waves
Answers
compare the 3 different types of waves
Answers
Answer:Mechanical waves, electromagnetic waves, and matter waves.
Explanation: does are the waves
which force is a contact force
Answers
The gradual temperature change from one season to the next is due to what? view attachment
Answers
What is the acceleration of an object with a mass of 367 kg when a net force of 183 N is applied to it
Answers
Answer:
[tex]0.5m/s^{2}[/tex]
Explanation:
F= m x a
a= [tex]\frac{F}{m}[/tex] = [tex]\frac{183 N}{367 kg}[/tex] = [tex]\frac{0.4986 N}{kg}[/tex] = [tex]\frac{0.4986 kg*m/s^{2} }{kg}[/tex] = [tex]0.5 m/s^{2}[/tex]
Hopefully, this is right!
amp, is named after a person who was the person
Answers
Answer:
Explanation:
Named for 19th-century French physicist André-Marie Ampère, it represents a flow of one coulomb of electricity per second.
calculate the height from from which a body is released from rest if its velocity just before hitting the ground is30m\s
Answers
Answer:
height = 45 m
Explanation:
Initial velocity = 0 m/s
Final velocity = 30 m/s
Acceleration due to gravity = +10m/s^2 ( because ball is going down )
Using the eqn of motion
[tex] {v}^{2} - {u}^{2} = 2gh[/tex]
where v= final velocity ; u = initial velocity ; g = acceleration due to gravity ; h = height
So,
[tex] {30}^{2} - {0}^{2} = 2 \times 10 \times h[/tex]
[tex] = > 20h = 900[/tex]
[tex] = > h = \frac{900}{20} = 45[/tex]
What are four pieces of evidence for continental drift?
Answers
what is marketing according to AMA
Answers
Answer:
The new 2007 AMA defini- tion is as follows: Marketing is the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large.
Explanation:
An 85kg mass accelerates at 5.5m/s2 what force was applied
Answers
Answer:
467.5 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 85 × 5.5
We have the final answer as
467.5 NHope this helps you
Which two factors affect the amount of force seen in objects?
Answers
Answer:thanks
Explanation:xixo
gv
In consideration of the above diagram, a projectile is launched at 45 with an initial horizontal velocity (V0x) of 3 m/s. Calculate the Vox which is the actual launch velocity at 45 in m/s.
Answers
CFISD too huh? :D
also tryna get the answer
The graph shows the speeds of two bicyclists on their way to school. what is the speed of bicycle B
Answers
Answer: 0.3
Explanation: Jusy took it and got a 100
Answer: 0.3
Explanation: This is right trust me I answered this and it was correct!!
A transformer has 1000 turns on the primary coil.
The voltage applied to the primary coil is 230V a.c,
How many turns are on the secondary coil if the output
voltage is 46 V a.c.?
A)20 B)200 C)2000 D4000 E)8000
Answers
Answer:
200
Explanation:
Given parameters:
Number of turns in primary coil = 1000 turns
Primary voltage = 230V
Secondary voltage = 46V
Unknown:
Number of turns in secondary coil = ?
Solution:
To solve this problem, we have to use the expression for solving problems related with transformers;
[tex]\frac{Vs}{Ns}[/tex] = [tex]\frac{Vp}{Np}[/tex]
Vs is the secondary voltage
Ns is the number of secondary turns
Vp is the primary voltage
Np is the number of primary turns
Now insert the parameters and solve;
[tex]\frac{46}{Ns}[/tex] = [tex]\frac{230}{1000}[/tex]
46 x 1000 = 230Ns
Ns = 200
What is also known as watered carbons
Answers
Answer:
The name carbohydrate means "watered carbon" or carbon with attached water molecules. Many carbohydrates have empirical formuli which would imply about equal numbers of carbon and water molecules. For example, the glucose formula C6H12O6 suggests six carbon atoms and six water molecules.
calculate the velocity of an object moved around a circle with a radius of 1.65m and an acceleration of 3.5 m/s^2
Answers
Answer:
2.4m/s
Explanation: