2 years ago

A 4.0-kg object has 72 J of kinetic energy. Determine its speed.

Physics

1 answer:

Svetlanka [38]2 years ago

8 0

Answer:

6m/s

Explanation:

v = sqrt of 2KE/m

Where:

KE = kinetic energy

m = mass of a body

v = velocity of a body

= sqrt of 2(72)/4

= sqrt of 144/4

= sqrt of 36

= 6m/s

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