The mass of an object P is double the mass of Q. If both move with the same velocity, then the ratio of Kinetic Energy of P to Q is:

1 : 2

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2 : 1

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1 : 4

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4 : 1

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Solution

The correct option is B 2 : 1
K.E. $= \frac{1}{2} m v^{2}$ .
So $\frac{K_{p}}{K_{q}} = (\frac{m_{p}}{m_{q}})^{2}$
Because $v_{1} a n d v_{2}$ are equal so ratio of their kinetic energy will be 2:1 because mass P is double that if Q.

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The mass of an object P is double the mass of Q. If both move with the same velocity, then the ratio of Kinetic Energy of P to Q is:

The correct option is B 2 : 1K.E. =12mv2.So KpKq=(mpmq)2 Because v1andv2 are equal so ratio of their kinetic energy will be 2:1 because mass P is double that if Q.

The correct option is B 2 : 1
K.E. $= \frac{1}{2} m v^{2}$ .
So $\frac{K_{p}}{K_{q}} = (\frac{m_{p}}{m_{q}})^{2}$
Because $v_{1} a n d v_{2}$ are equal so ratio of their kinetic energy will be 2:1 because mass P is double that if Q.