Question

A body of mass 5kg falls from a height of 30 m if its mechanical energy is changed into heat ,then heat produced will be​

Answer 1

hey mate here is your answer

We know,

1 cal = 4.2 J

g=9.8 m/s^2

Again,

E=mgh

=5*9.8*30

=1470 J

=1470/4.2 cal

=350 cal

So, answer is 350 cal