Suppose a constant force is the only force applied to an object of unknown mass.

Question

Suppose a constant force is the only force applied to an object of unknown mass. What quantities do we need to know in order to find the object's change in momentum? Select all that apply

a) We need to know the change in the velocity of the object.

b) We need to know the time interval during which the force acts.

c) We need to know the magnitude of the force.

d) We need to know the change in the position of the object.

e) Impossible: You cannot find the object's change in momentum without knowing its mass.

Explanation / Answer

b) We need to know the time interval during which the force acts.

c) We need to know the magnitude of the force.

because force =change in momentum/time taken

so change in momentum=force*time

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