Physics Past Questions

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

107 questions
Question 1 of 7 107 total questions
Question 51
jamb 1990
A body of mass 10kg rests on a rough inclined plane whose angle of tilt \(\theta\) is variable. \(\theta\) is gradually increased until the body starts to slide down the plane at 30o. The coefficient of limiting friction between the body and the plane
A0.30
B0.50
C0.58
D0.87
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Question 52
jamb 1990
A stone of mass m kg is held h meters above the floor for 50s. The work done in joules over this period is
Amh
Bmgh
C\(\frac{mgh}{50}\)
DO
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Question 53
jamb 1990
To keep a vehicle moving at a constant speed v, requires power P, from the engine. The force provided by the engine is
A\(\frac{p}{v}\)
B\(\frac{1}{2}\) v
Cpv
D\(\frac{p}{v^2}\) v
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Question 54
jamb 1990
Which of the following statements are correct about an object in equilibrium under parallel forces? i. the total clockwise moments of the forces about any point equals the total anti-clockwise moments about the same point. ii. the total forces in one direction equals the total forces in the opposite direction. iii. the resolved components along the x-axis equals the resolved components along the y-axis.
Ai and ii only
Bi and iii only
Cii and iii
Di, ii, and iii only
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Question 55
jamb 1990
A particle of mass M which is at rest splits up into two. If the mass and velocity of one of the particles are m and v respectively, calculate the velocity of the second particle
A\(\frac{mv}{M}\)
B\(\frac{Mv}{M - m}\)
C\(\frac{mv}{M + m}\)
D\(\frac{mv}{M - m}\)
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Question 56
jamb 1990

A car moving with a speed of 90kmh\(^{-1}\) was brought uniformly to rest by the application of the brakes in 10s. How far did the car travel after the brakes were applied?

A125m
B150m
C250m
D15km
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Question 57
jamb 1990
Which of the following is a fundamental unit?
ANewton
BWatt
CJoule
DSecond
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