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 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 22
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 23
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 24
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 25
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 26
jamb 1990
Which of the following is a fundamental unit?
ANewton
BWatt
CJoule
DSecond
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