Question #f59a9

1 Answer
Oct 8, 2017

Let's see.

Explanation:

Kinetic Energy E=1/2mv^2.

For getting Kinetic energy in S.I. unit, convert all C.G.S. units into S.I.

For eg. Given, 200g=200/1000kg=0.2kg.

(1). E_(app)=1/2(0.2).(12)^2 Joules.

:.E_(app)=14.4J. (Answer).

(2). E_(boy)=1/2(60).(3)^2 Joules.

:.E_(boy)=270J. (Answer).

Hope it helps :)