patrickmulbah93
Answered

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

Sagot :

Answer:

135J

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

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