Divya asks: a ball is dropped from elevator moving upward with an accleration ‘a’ by a boy standing in it . the acceleration of ball with respect to elevator is? (take upward direction positive)

# Category: Physics Homework

## A question from Kinematics.

An object thrown vertically up from the ground passes the height 5m twice in an interval of 10s. What is its time of flight? (Divya asked) Answer: The question seems partial. I am assuming that g= 10 m/s2 and the projection is strictly vertical. The o...

## Gain in momentum of a body starting from rest and moving with a uniform acceleration

A mass of 2 g initially at Rest Travels for 4 sec with and acceleration of 1.5m/s2.The gain of momentum of the body is: This question was posted by Thushar Goyal. Answer: Taking u = 0 m/s, a= 1.5 m/s2 and t = 4 s calculate v v=u+at =6m/s masss, m = 2...