1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ololo11 [35]
3 years ago
10

A car traveling 24.5 m/s runs over a cliff and lands 8 m away from the base. how high is the cliff?

Physics
1 answer:
mojhsa [17]3 years ago
6 0

Answer: 0.522 m

Explanation:

This situation is related to projectile motion, where the initial velocity of the car V_{o}=24.5 m/s has only the horizontal component. This means the angle is equal to zero (\theta=0). And the equations we will use to find the height y_{o} of the cliff are:

y=y_{o}+V_{o}sen \theta t+\frac{1}{2}gt^{2} (1)  

Where:  

y=0 m is the final height of the car

y_{o} is the initial height

V_{o}=24.5 m/s is the initial velocity of the car

t is the time

g=-9.8 m/s^{2} is the acceleration due to gravity

\theta=0 is the angle

x=8 m is the horizontal distance traveled by the car after passing the cliff

Well, firstly we have to find t  from (1):

0=y_{o}+\frac{1}{2}gt^{2} (3)  

t=\sqrt{-\frac{2y_{o}}{g}} (4)  

Substituting (4) in (2):

x=V_{o}cos \theta (\sqrt{-\frac{2y_{o}}{g}}) (5)  

Isolating y_{o}:

y_{o}=-\frac{x^{2} g}{2V_{o}^{2}} (6)  

y_{o}=-\frac{(8m)^{2} (-9.8 m/s^{2})}{2(24.5)^{2}} (7)  

Finally:

y_{o}=0.522 m

You might be interested in
One of the ways that scientists determine the distance between Earth and other objects in space is to send light waves toward an
Ahat [919]

Answer:

a star in andromeda

Explanation:

all of the other objects are in the milkyway (where we are) and the andromeda galaxy is 2 million light years away from us

7 0
3 years ago
Which of these metals are magnetic?
Gwar [14]

Answer:

If iron, nickle, or cobalt is an answer choice, those are the three metals that are purely magnetic.

3 0
3 years ago
Imvu?<br> ..............................
Dominik [7]
Imvu? Like the app?
4 0
3 years ago
Read 2 more answers
What causes the pressure that allows diamonds to form in the mantle
LuckyWell [14K]
It’s C I just took it
5 0
3 years ago
Read 2 more answers
A 1,700 kg car is being used to give a 1,400 kg car a push start by exerting a force of
Gwar [14]

Answer:

- 670 kg.m/s

Explanation:

Newton's third law states that to every action, there is equal and opposite reaction force. Since the force will be same but different in direction and acted in the same time then the impulses ( force multiply by time) of the two car be same in magnitude but different in direction - 670 kg.m/s

5 0
3 years ago
Other questions:
  • Please describe the relationship between the lithosphere and asthenosphere making sure to incorporate these terms: divergent bou
    15·1 answer
  • Small rock substances that orbit the sun in groups is called
    7·1 answer
  • _________ is amount of “ground” an object moves from its starting point and __________ is how much “ground” and object covers in
    6·2 answers
  • In regard to self-modification, a program of intervention should be designed to increase or decrease target behavior. T F
    12·2 answers
  • .An 850 turn solenoid with a diameter of 7.0cm is 21 cm long with 42A of current.A long straight wire cuts through the center of
    12·1 answer
  • When vectors are added or subtracted, the net force is called the _____.
    11·2 answers
  • An object is moving to the left and is slowing down. its acceleration is
    13·1 answer
  • A force of 16 N to the west is applied to each object below.
    9·2 answers
  • Hey can anyone help me with my physics exam​
    11·2 answers
  • A flowerpot falls from a window sill 36.5 m
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!