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Q.

[75]

If a stone is thrown vertically upward, then what will be the velocity of the stone at the topmost point of the journey?


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a

Maximum

b

Minimum

c

Zero

d

10 m/sec 

answer is C.

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Detailed Solution

If a stone is thrown vertically upward, the velocity of the stone at the topmost point is zero.
When the stone reaches the topmost point, the velocity will be zero, but the gravity acceleration will not be zero and act downwards. When a body is thrown vertically upward, the velocity at the highest point is zero as the acceleration due to gravitational force continuously acts downward, hence the velocity is zero at the highest point. Velocity is zero because of acceleration.
 
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