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The speed of a motor bike decrases by 4 times.its kinetic energy will decrease by |
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Answer» s decreased 4 times so v-v/4=3v/4after DECREASING it speed is KE=1/2xmx(3v/4)SQUARE =1/2xmx9/16(v)SQ =9/16[1/2xmx(v)sq]KE is DECREASES 9/16times of original KE |
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