Question

the kinetic energy of an object of mass M moving with a velocity of 5 metre per second is 25 June 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 1

ANSWER :

Kinetic energy = 1/2 mv²

25 = 1/2 m (5)²

50 = 25m

m = 50/25

m = 2 kg

The mass is 2 kg

Now, the velocity is doubled, ie, 2×5 = 10m/s

Kinetic energy = 1/2 (2)(10)² = 100 Joules

Now, the velocity is tripled, ie, 3×5 = 15m/s

Kinetic energy = 1/2 (2)(15)² = 225 Joules

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Answer 2

Answer:

if velocity is double then v= 10 and k.e = 110 J

if tripled then v is 15 and k.e is 225 j

Explanation:

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