Question

Find the kinetic energy of a ball of mass 500 gm moving with a speed of 20 m/s. Solve it

Answer 1

Explanation:

KE = 1/2 mv²

m=500 g

v= 20 m/s

1/2 (500)(20)²

KE= 1/2 * 500/400

KE= 1/2 * 5/4

KE= 5/6

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Answer 2

Answer:

1000J

Explanation:

mass=500gm =500/1000kg=1/2

v=20m/s

so,

Ke=1/2mv²

=1/2×1/2×20×20

=1000J