Question

a 3 kg ball is rolling 2 m/s. how much kinetic energy does it have?

Answer 1

KE=1/2mv^2
KE=1/2×3×2^2=6J

Answer 2

Heya !
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=> Kinetic Energy is the energy possessed by an object due to its state of motion . It is equal to the product of mass (m) and the square of velocity (v).

Expression - Ke = ½ mv²


→ Here we have ,

• Mass (m) = 3kg

• Velocity (v)= 2 m/s

•°• Ke = ½ × 3 × (2)²

=> ½ × 3 × 4

=> 6 J


★It's kinetic Energy is 6J !!

$....$

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