mk4044829 mk4044829

13-07-2021
Physics

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A boy of mass 50 kg on a motor bike is moveny coith 20m/see what is hio k.E

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haleema78901 haleema78901

13-07-2021

Kinetic energy=a half mv squared
Mass=50kg
Velocity=20m/s
1/2 multiply 50 multiply 20 squared
1/2 multiply 50 multiply 400
1/2 multiply 20000
1 multiply 20000 divide 2
20000 divide 2=1000

Kinetic energy=1000J

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