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Q1: The vertical velocity of ball thrown upward ___________ with time.
A) Decreases Linearly
B) Remains Constant
C) Doubles
D) Decreases parabolically
Ans : A) Decreases Linearly.
Because in the absence of air resistance the only force act on it gravitational pull due to which the speed of ball decreases linearly ultimately it becomes zero when it reaches highest position.
Q2:The distance and displacement can be equal if:
A) An object moves in a circular path.
B) An object oscillates.
C) An object moves in a straight line.
D) An object moves in a parabolic path.
C) An object moves in a straight line.
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