Home
Class 12
PHYSICS
A rock is dropped off a cliff that's 80 ...

A rock is dropped off a cliff that's 80 m high. If it strikes the ground with an impact velocity of `40 m//s`, what acceleration did it experience during its descent ?

Text Solution

AI Generated Solution

To solve the problem of finding the acceleration experienced by a rock dropped from a height of 80 meters, we can use the equations of motion. Here are the steps to arrive at the solution: ### Step-by-Step Solution: 1. **Identify the Known Values:** - Initial velocity (u) = 0 m/s (since the rock is dropped) - Final velocity (v) = 40 m/s (impact velocity) - Distance (s) = 80 m (height of the cliff) ...
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    PRINCETON|Exercise MCQ|9 Videos

  • HEAT AND THERMODYNAMICS

    PRINCETON|Exercise COMPREHENSIVE DRILL|10 Videos

  • LINEAR MOMENTUM

    PRINCETON|Exercise COMPREHENSIVE DRILL|9 Videos

Similar Questions

Explore conceptually related problems

A body is dropped from a height of 16 m. The body strikes the ground and losses 25% of its velocity. The body rebounds to a height of

A ball of mass 1 kg drops vertically on to the floor wit a speed of 25 m//s . It rebounds with an initial velocity of 10 m//s . What impulse acts on the ball during contact ?

A body dropped from a height h with initial velocity zero, strikes the ground with a velocity 3 m/s. Another body of same mass dropped from the same height h with an initial velocity of 4m/s. Find the final velocity of second mass with which it strikes the ground.

An apple of mass 250 gram falls from a tree through a vertical distance of 6m and reaches the ground with a velocity 8m/s .If it experiences a constant air. resistance during its fall,then the magnitude of work done by the air resistance on it is (g=10m/s^(2))

An apple of mass 250 gram falls from a tree through a vertical distance of 6m and reaches the ground with a velocity 8m/s .If it experiences a constant air. resistance during its fall,then the magnitude of work done by the air resistance on it is (g=10m/s^(2))

A ball is gently dropped from a height of 20m . If its velocity increases uniformly at the rate of 10 m//s^(2) , with what velocity will it strike the ground ? After what time will it strike the ground ?

A Body is drops from a 100m high cliff and the same time another body is thrown from the ground with 25m/s velocity in upward direction. Where the two will meet?

A ball is dropped from the top of a 200 m high tower on a planet. In the last 1/2 s before hitting the ground, it covers a distance of 79 m. Acceleration due to gravity (in ms–2) near the surface on that planet is ______.