Question

Find the velocity of a body of mass 2kg having kinetic energy of 100 Joule

Answer 1

K.E.= 100J

m= 2kg

K.E.= 1/2 m v^2

100= 1/2 *2 *v^2

√100 = v

v= 10m/sec

Answer 2

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ANSWER :

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The mass of the object, m = 2 kg

The speed of the object, v = ?

The Kinetic Energy, K.E = 100 J

We know that ,

$kinetic \: energy = \frac{1}{2} mv ^{2}$

From this ,,,

Kinetic Energy ,K.E = 1/2 × 2 × (v)^2

100 = v^2

v = 10 m/s

The Velocity is 10 m/s

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