5. (a) A constant horizontal force of 4×10
³ N is acting on an object of mass 10×10
³ kg on...
5. (a) A constant horizontal force of 4×10
³ N is acting on an object of mass 10×10
³ kg on a
horizontal surface. The initial velocity of the object is 8.0 m s
-¹
.
Calculate the final velocity
of the object after it has moved 150 m
(i) if the horizontal surface is smooth and,
(ii) if the horizontal surface is rough and exerts an opposing force of 200 N to
the motion of the object.
Answers: 1
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