The kinetic energy of an object …
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Yogita Ingle 3 years, 4 months ago
The K.E(KINETIC ENERGY) of the object is 25 J.
So, 25=1/2 × m × (5)2
Therefore,m=2 kg.
Now, when the velocity is doubled, velocity becomes=2*5=10 m/s(ms-1)
So,
K.E.=1/2 × 2 × (10)2 =100 J.
Now, when the velocity is increased three times, the velocity will be=3×5=15m/s
Therefore,K.E.=1/2×2×(15)2 = 225 J.
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