The mass of a pendulum bob is 0.2kg, and it is suspended by a string 1m
Channel: Doubtnut
Date: 2020-07-26

The mass of a pendulum bob is 0.2kg, and it is suspended by a string 1m long. It is pulled aside until the thread is at `30^(@)` to the vertical. How much work is done ? The ball is now released. Find its K.E. at the lowest point ? Take `g=10ms^(-2).`