Question

a body of mass 2 kg is dropped from a height of 5 M find kinetic energy with which it strikes the ground.take G is equal to 10 M per second square​

Answer 1

Here...

By third equation of motion

v *2 - u *2 =2gh

..As u =0{object is at rest when dropped}

●◆◆>v*2=20×5 =100 m

◆◆●●>>v= 10 m/s...

so kinetic energy = 1/2(2)(100)

◆◆◆◆◆◆◆◆●●●>100m/s...

Hope it helps....◆◆◆◆●●●●●●◆◆◆◆