A) Force Q and force Z represent the same force.
B) Force P will be larger when the weight of the object is less
C) Force Z and force X act to increase the speed of the object.
D) Both (a) and (b)
Correct Answer: A
Solution :
In the picture (i), X is frictional force, Y is pushing force and Z is gravitational force that act on the ball. In picture (ii), P is buoyant force and Q is gravitational force. Buoyant force is proportional to the weight of the object.
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