Question

What is the kinetic energy of a motorcycle with a mass of 200 Kg that is traveling at a velocity of 20 m/s

Answer 1

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QUESTION - What is the kinetic energy of a motorcycle with a mass of 200 Kg that is traveling at a velocity of 20 m/s

Answer -

First write the given information from the question

Mass= 200 kg

Velocity = 20 m/s

( NOTE - UNITS PLAY A MAJOR ROLE)

KINETIC ENERGY = 1/2( MASS* VELOCITY *VELOCITY)

KINETIC ENERGY =1/2(200*20*20)

KINETIC ENERGY = 1/2( 80000)

KINETIC ENERGY = 40000 JOULES

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Answer 2

KE = MVV/2
= 200 × 10 × 10 / 2
=20000/ 2
= 10000 J