If 'p' is the momentum of an object of 'mass' m, the expression (p^2/2 m) has base units identical to:
(a) Energy
(b) Force
(c) Power
(d) Velocity
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Answer:
The expression (p^2/2 m) has base units identical to energy i.e. option (a).
Explanation:
First, let's see how energy is given,
(1)
Where,
E=energy of an object
m=mass of an object
v=velocity with which the object is moving
On multiplying and dividing equation (1) with mass (m) we get;
(2)
Also, the momentum (P) of a body is given as,
(3)
By using equation (3) in equation (2) we get;
Hence, the expression (p^2/2 m) has base units identical to energy i.e. option (a).
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