body of mass 45 kg is moving with a speed of 90 m/s. Find its kinetic energy?
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s. Find its kinetic energy?
body of mass 45 kg is moving with a speed of 90 m/s. Find its kinetic energy?
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K.E. =1/2mv² , where m = 45 kɡ , v = 90 m/s
= 1/2 × ( 45kɡ × 90 m/s)
= 1/2 × 4050 Joule
= 2025 Joule