﻿ An athlete in the Olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range from Physics Work, Energy and Power Class 11 Manipur Board

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An athlete in the Olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

• 200 J − 500 J

• 2 × 105J − 3 × 105J

•  20,000 J − 50,000 J

• 2,000 J − 5,000 J

C.

20,000 J − 50,000 J

Approximate mass = 60 kg Approximate
velocity = 10 m/s Approximate
KE = (1/2)x60 x1000 = 3000 J
= KE range ⇒ 2000 to 5000 joule

Approximate mass = 60 kg Approximate
velocity = 10 m/s Approximate
KE = (1/2)x60 x1000 = 3000 J
= KE range ⇒ 2000 to 5000 joule

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