Question : Which of the following is not a vector quantity?
Option 1: Momentum
Option 2: Displacement
Option 3: Torque
Option 4: Speed
Correct Answer: Speed
Solution : The correct option is Speed.
Physical quantities that possess both direction and magnitude Physical quantities with only magnitude are called scalar quantities, while those with both direction and magnitude are called vector quantities. Speed is a scalar number since it simply requires its magnitude and does not require motion in any particular direction.
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