The weight of a body would not be zero
A) at the centre of the earth
B) during a free fall
C) in interplanetary space
D) on a frictionless surface
Correct Answer:
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Q15: How many fundamental units are present in
Q16: Which of the following physical quantities is
Q17: The unit for the rate of change
Q18: The velocity of a body at rest
Q19: Impulse is
A)a scalar quantity
B)a vector quantity
C)neither a
Q21: A man is standing on a boat
Q22: If action and reaction were to act
Q23: The combined effect of mass and velocity
Q24: Momentum is a measure of
A)weight
B)mass
C)quantity of motion
D)velocity
Q25: A rocket works on the
A)first law of
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