Motion - Jamb Physics Past Questions and Answers

Question 46:

• JAMB 1988

the fig above shows displacement-time graphs for three different motions. which of the following statements is correct

A. Graph 2 corresponds to the highest velocity
B. Graph 1 corresponds to zero gravity
C. Graph 3 corresponds to a particle moving in the negative x direction
D. Graph 2 corresponds to a particle moving in the positive x direction

Question 47:

• JAMB 1989

Two points on a velocity time-graph have coordinates (5s, 10ms^-1) and (20s, 20ms^-1). Calculate the mean acceleration between the two points

A. 0.67ms^-1
B. 0.83ms^-1
C. 1.50ms^-1
D. 2.00ms^-1

Question 48:

• JAMB 1989

When the tension in a sonometer wire is doubled, the ratio of the new frequency to the initial frequency is

A. \(\frac{1}{\sqrt2}\)
B. \(\frac{1}{2}\)
C. \(\sqrt2\)
D. 2

Question 49:

• JAMB 1989

A simple pendulum of mass m moves along an arc pf a circle radius R in a vertical plane as shown above. What is the work done by gravity in a downward swing through the angle q to 0 degree

A. MgR sinθ
B. MgR (1- cos θ)
C. MgR
D. MgR (1 - sinθ)

Question 50:

• 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?

A. 125m
B. 150m
C. 250m
D. 15km