11 A stone weighing 3 kg falls from the top of a tower 100 m

Last updated: 6/25/2023

11 A stone weighing 3 kg falls from the top of a tower 100 m high and buries itself 2 m deep in the sand The time of penetration is 12 ant 2 0 9 sec 1 0 09 sec 3 2 1 sec The velocity of a body at any instant is 10 m s Aftor 5 acceleration is 4 none of these 4 1 3 sec