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Physics Past Questions

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

88 questions
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Question 1 of 8 88 total questions
Question 41
jamb 1994
Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms-2]
A400.0N
B40.0N
C4.0N
D0.4N
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Question 42
jamb 1994
A cone in an unstable equilibrium has its potential energy
Adecreased
Bincreased
Cunchanged
Doscillating
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Question 43
jamb 1994
An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it strikes the ground
A250J
B1000J
C10 000J
D100 000J
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Question 44
jamb 1994

Which of the following is TRUE of a particle moving in a horizontal circle with constant angular velocity?

AThe energy is costant but the linear momentum varies
BThe linear momentum is conatant but the energy varies
Cboth energy and linear momentum are constant
DThe speed and the linear velocity are both constant
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Question 45
jamb 1994
A motor vehicle is brought to rest from a speed of 15ms-1 in 20 seconds. Calculate the retardation.
A0.75ms-1
B1.33ms-2
C5.00ms-2
D7.50ms-2
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Question 46
jamb 1994
An object is projected with a velocity of 80ms-1 at an angle of 30o to the horizontal.The maximum height reached is
A20m
B80m
C160m
D320m
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Question 47
jamb 1994

A boat travels due east at a speed 40ms\(^{-1}\)s across a river flow due south at 30ms\(^{-1}\)s. What is the resultant speed of the boat?

A1.3ms-1
B10.0ms-1
C50.0ms-1
D70.0ms-1
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Question 48
jamb 1994

If it takes 5.0 hrs to drain a container of 540.0m\(^3\) of water, what is the flow rate of water from the container in kgs\(^{-1}\)? [Density of water = 1000kgm\(^{-3}\)]

A32.5kg-1 s
B31.5kg-1
C30.8kg-1 s
D30.0kg-1 s
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