Question

A body of mass 20kg has kinetic energy of 1000J.Its speed is. pls exam right now
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Answer 1

Answer:

PLZ MARK AS BRAINLIEST!

Explanation:

Given : Mass = 20 kg and Kinetic Energy = 1000 J

We know that,

Ek = (1/2)mv²

⇒ 1000 = 1/2 × 20 × v²

⇒ v² = (1000 × 2) / 20

⇒ v² = 100

⇒ v = √100

⇒ v = 10 m/s

So, The speed of the body is 10 m/s

Answer 2

If 4 men can do a piece of work in 5 days. How many men will do the work in 4 days?