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A particles is in a unidirectional poten...

A particles is in a unidirectional potential field where the potential energy (U) of a particle depends on the x-coordinate given by `U_(x)=k(1-cos ax)` & k and 'a' are constant. Find the physical dimensions of `'a' & k `.

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The correct Answer is:
`L^(-1),ML^(2)T^(-2)`
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ALLEN -UNIT & DIMENSIONS, BASIC MATHS AND VECTOR -Exercise (S-1)
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  18. Calculate vecr=veca-vecb+vecc where veca=5hati+4hatj-6hatk, vecb=-2hat...

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  19. If the velocity of a particle is (2hati+3hatj-4hatk) and its accelerat...

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