Two stones are thrown into air with speeds 20 m/s, 40m/s respectively? What are accelerations possessed by the objects?

An object is thrown vertically downward. What is the acceleration experienced by the object?

A particle starts from rest with a constant acceleration. At a time t second, the speed is found to be 100 m/s and one second later the speed becomes 150 m/s. Find a. the acceleration and b. the distance travelled during the (t+1)^(th) second.

If a stone tied at the one end of a string of length 0.5 m is whirled in a horizontal circle with a constant speed 6 ms^(-1) , then the acceleration of the stone is

Two objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m s-1 and m s-1 respectively. They collide and after the collision, the first object moves at a velocity of 1.67 ms-1. Determine the velocity of second object.

Two balls of equal masses movin with velocities 10m/s and -7m/s respectively collide elatically. There velocities after collision with be

A car started from rest and it is travelling with velocity of 20 m/s in 10 s. What is its acceleration?

A stone is thrown vertically upward with a speed of 28 m/s. (a) Find the maximum height reached by the stone. (b)Find its velocity one second before it reaches the maximum height.

Two cars moving in opposite directions approach each other with speed of 22m//s and 16.5 m//s respectively.The driver of the first car blows a horn having a frequency 400Hz.The frequency heard by the driver of the second car is [velocity of sound 340 m//s ]

A stone is thrown vertically up from the tower of height 25m with a speed of 20 m/s What time does it take to reach the ground ? (g=10 m//s^(2))

A body is moving with velocity 30m//s towards east .After 10 seconds its velocity becomes 40m//s towards north .The average acceleration of the body is