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Question

Pick out the only vector quantity in the following list : Temperature, pressure, impulse, time, power, total path length, energy, gravitational potential, coefficient of friction, charge.

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Solution

The given physical quantities are: temperature, pressure, impulse, time, power, total path length, energy, gravitational potential, coefficient of friction and charge.

We know that the product of a vector quantity and a scalar quantity yields a vector quantity. Impulse is the product of force and time, where force is a vector quantity and time is a scalar quantity. Hence, impulse is a vector quantity.

Therefore, impulse is a vector quantity as it is a product of a vector quantity and a scalar quantity.


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