what is the speed of a runner of mass 50 kg whose kinetic energy while running is 2500 joule.
what is the speed of a runner of mass 50 kg whose kinetic energy while running is 2500 joule.
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kinetic energy=1/2mv²
2500=1/2*50v²
v²=2500/25
v²=100
v=10m/s
Answer:
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