Question

Find the mass of body which has 5J(Joules) of Kinetic Energy while moving at a speed of 2m/s.

Answer 1

KE=5J
Speed (v) = 2m/sec
Mass of the body= mkg

➡️ KE= 1/2mv^2
➡️5J= 1/2(m)(2)^2
➡️m=5/2
•°•m= 2.5kg...

Answer 2

hey mate !!!

answer :-

kinetic energy = 5J ,v+2m/s

K.E.=1/2mv²

5=1/2m×2²

5=2m

m=5/2

m=2.5 kg

hope this helps !!!