Question

a body of mass 96 kg is travelling at 20 metre per second from what height should a body of mass 50 kg falls on the both will have the same kinetic energy​

Answer 1

An

Eed that'jsnsbsbhsjsbsbshsbshsbs

Answer 2

Explanation:

Mass of 96 kg is traveling at 20 m/s

Hence K.E of the body will be

$\frac{1}{2} \times m \times {v}^{2}$

Substituting the values we get

KE = 19,200

Now P.E of the second body with mass 50 kg will be

$m \times g \times h$

we get P.E =

$50 \times 9.8 \times h$

Hence, P.E = 490h

Since both have to be equal potential energy of 50 kg and Kinetic energy of 96 kg are equated

Hence , 19200=490h

From this we get ,

$h = \frac{19200}{490}$

which is equal to 39.18 metres approximately

Hope you find this useful!!