A body of mass 450g changes it speed from 5ms¹ to 25ms¹. what is the work done by the body?

Question

asked Sep 17, 2022 180k views

1 Answer

Ahmacleod · Answer 1 · 2022-09-22T06:29:58+0000

Answer:

135J

Step-by-step explanation:

So we know ΔKinetic Energy= ΔWork

Kinetic energy=1/2mv²

So Kf-Ki=ΔK

ΔK=1/2*0.45(25²-5²)=135J

135J=ΔWork