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?
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Explanation:
KE=1/2mv²
25=1/2m5²
1/2m=25/25
m=1×2
m=2kg
KE=1/2×2×10²
=100j
KE=1/2×2×15²
=225j
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