Motion - Jamb Physics Past Questions and Answers

Question 116:

• JAMB 2007

A gramophone record takes 5s to reach its constant angular velocity of 4\(\pi\) rads^-1 from rest. Find its constant angular acceleration.

A. 0.4\(\pi\) rads^-2
B. 0.8\(\pi\) rads^-2
C. 1.3\(\pi\) rads^-2
D. 20.0\(\pi\) rads^-2

Question 117:

• JAMB 2007

A car of mass 1500 kg goes round a circular curve of radius 50m at a speed of 40 ms^-1. The magnitude of the centripetal force on the car is ?

A. 4.8 x 10⁴ N
B. 4.8 x 10³ N
C. 1.2 x 10³ N
D. 1.2 x 10² N

Question 118:

• JAMB 2007

From the diagram above, the bob of the pendulum has the fastest speed at

A. X
B. Y
C. Z
D. W

Question 119:

• JAMB 2007

A string of length 4m is extended by 0.02m when a load of 0.4kg is suspended at its end. What will be the length of the string when the applied force is 15N?

A. 4.05m
B. 4.08m
C. 5.05m
D. 6.08m

Question 120:

• JAMB 2008

If a wheel 1.2 m in diameter rotates at one revolation per second, calculate the velocity of the wheel.

A. 3.6 ms^-1
B. 3.77 ms^-1
C. 4.0 ms^-1
D. 7.5 ms^-1