Motion - Jamb Physics Past Questions and Answers

Question 121:

• JAMB 2008

What is the frquency of vibration if the balance wheel of a wrist watch makes 90 revolutions in 25 s?

A. 0.01 Hz
B. 0.04 Hz
C. 2.27 Hz
D. 3.60 Hz

Question 122:

• JAMB 2008

A force F required to keep a 5 kg mass moving round a cycle of radius 3.5 m at a speed of 7 ms^-1. What is the speed, if the force is tripled?

A. 4.0 ms^-1
B. 6.6 ms^-1
C. 12.1 ms^-1
D. 21.0 ms^-1

Question 123:

• JAMB 2008

A body of mass 4 kg resting on a smooth horizontal plane is simultaneously acted upon by two perpendicular forces 6N and 8N. Calculate the acceleration of the motion

A. 2.5 ms^-1
B. 3.0 ms^-1
C. 4.0 ms^-1
D. 4.5 ms^-1

Question 124:

• JAMB 2009

What is the acceleration between two points on a velocity time graph which has coordinates
(10s, 15 ms^-1)
and (20 s, 35 ms^-1)?

A. 1.7 ms^-2
B. 3.50 ms^-2
C. 1.00 ms^-2
D. 2.00 ms^-2

Question 125:

• JAMB 2009

A bullet fired vertically from upward from a gun held 2.0 m above the ground reaches its maximum height in 4.0s. calculate its initial velocity.
[g = 10ms^-2]

A. 10 ms^-1
B. 8 ms^-1
C. 40 ms^-1
D. 20 ms^-1