A stunt car starts at rest at a distance 85m from the edge of a 250m tall cliff. The car accelerates 9 m s toward the / 2 edge of the cliff. As the car leaves the cliff, it falls into the water below. How long did it take to hit the ground?

7.14 s

Explanation:

The motion of the car is a projectile motion, which consists of two independent motions:

- A uniform motion along the horizontal direction (constant velocity)

- A uniformly accelerated motion along the vertical direction (free fall)

To find the time of flight of the car, we just analyze the vertical motion, using the suvat equation:

where:

s = 250 m is the vertical displacement, which is equivalent to the height of the cliff (we take the downward direction as positive direction)

u = 0 is the initial vertical velocity of the car

is the acceleration due to gravity

t is the time of flight

And solving for t, we find:

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

the right answer is 0.3 meters per second