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| 1. |
The kinetic energy of an object of mass, m moving with a velocity of 5 m/s is 25 J. What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity is increased three times? |
| Answer» TION:KE=1/2mv²25=1/2m5²1/2m=25/25m=1×2m=2kgKE=1/2×2×10² =100jKE=1/2×2×15² =225J | |