Question

Two toy cars A and B of masses 500g and 200g respectively are moving with the same speed. which of the following two has greater kinetic energy
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Answer 1

Answer:

Here, both the cars are moving with same speed. So the car with greater mass will possess greater kinetic energy.

Explanation:

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Answer 2

Explanation:

K=

2

1

mv

2

Since, speed is same, hence K∝m

And, m

A

>m

B

⟹K

A

>K

B