Jamb Physics 1978 Past Questions and Answers

Question 1:

• JAMB 1978

A man walks 1km due east and then 1km due north. His displacement is

A. 1 km N15^oE
B. 1 km N30^oE
C. \(\sqrt 2\)km N 45^oE
D. \(\sqrt 2\)km N 60^oE
E. 2km N 75^oE

Question 2:

• JAMB 1978

A man walks 1km due east and then 1km due north. His displacement is

A. 1 km N15^oE
B. 1 km N30^oE
C. \(\sqrt 2\)km N 45^oE
D. \(\sqrt 2\)km N 60^oE
E. 2km N 75^oE

Question 3:

• JAMB 1978

The factional force between two bodies

A. Exists only when there is relative motion or tendency for motion
B. Acts so as to oppose the motion
C. Depends on the normal reaction between the two surfaces
D. Is relatively independent of the area in contact
E. Has all of these characteristics

Question 4:

• JAMB 1978

An air force jet flying with a speed of 335ms-1 went past an anti-aircraft gun. How far is the aircraft 5s later when the gun was fired?

A. 838m
B. 3350m
C. 670m
D. 1675m
E. 67m

Question 5:

• JAMB 1978

A palm fruit dropped to the ground from the top of a tree 45m tall. How long does it take to reach the ground? (g = 10ms^-2)

A. 9s
B. 4.5s
C. 6s
D. 7.5s
E. 3s