Physics Past Questions

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46 questions JAMB 2483 WAEC 1904 NECO 322 CUSTOM 10
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Past Questions

46 questions
Question 1 of 6 46 total questions
Question 21
jamb 1998

A ball of mass 0.15kg is kicked against a rigid vertical wall with a horizontal velocity of 50ms-1. If it rebounced with a horizontal velocity of 30ms-1, Calculate the impulse of the ball on the ball · ·

A3.0Ns
B4.5Ns
C7.5Ns
D12.0Ns
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Question 22
jamb 1998
In free fall, a body of mass 1kg drops from a height of 125m from rest in 5s. How long will it take another body of mass 2kg to fall from rest from the same height? [g = 10ms-1·]
A5s
B10s
C12s
D15s
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Question 23
jamb 1998

A ball is moving at 18ms\(^{-1}\) in a direction inclined at 60º to the horizontal. The horizontal component to its velocity is

A9√3ms-1 ·
B6√3ms-1 ·
C8√3ms-1 ·
D9ms-1 ·
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Question 24
jamb 1998
The physical quantity that has the same dimensions as impulse is
Aenergy
Bmomentum
Csurface tension
Dpressure
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Question 25
jamb 1998

The velocity of a sound wave at 27oC is 360ms-1. Its velocity at 127oC is

A120√3 ms-1
B240 ms-1
C240√3 ms-1
D720√3 ms-1
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Question 26
jamb 1998
A bullet fired at a wooden block of thickness 0.15m manages to penetrate the block. If the mass of the bullet is 0.025kg and the average resisting force of the wood is 7.5 x 103N, calculate the speed of the bullet just before it hits the wooden block.
A450ms-1
B400ms-1
C300ms-1
D250ms-1
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