Force is given by the expression, F=Acos(Bx)+Ccos(Dt), where x is displacement and t is time. The dimension of (DB) is same as that of
A
Velocity
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B
Velocity gradient
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C
Angular velocity
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D
Angular momentum
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Solution
The correct option is D Velocity Dimension of D is [T−1]. Similarly, dimension of B is [L−1]. Thus dimension of DB=[T−1][L−1]=[M0L1T−1] So, the quantity DB represents velocity