Question

Find the velocity of object having mass 100 gram and kinetic energy of 20 joules

Answer 1

Hey Friend Here's Your Answer

$ke = 1 \div 2m{v}^{2}$
20J=1/2*100/1000v2
20J=5/100v2
2000J=5v2
2000/5=V2
400=V2
Hence, Velocity=underroot 400
=20m/s