Newton's laws of motion - Jamb Physics Past Questions and Answers

Question 1:

• JAMB 2019

If the time of flight is 96seconds, calculate the horizontal range through the point of projection.

A. 84400m
B. 69000m
C. 61440m
D. 24000m

Question 2:

• JAMB 1978

A machine gun with a mass of 5kg fires a 50g bullet at speed of 100ms^-1. The recoil speed of the machine gun is

A. 0.5 msec^-1
B. 1.5 msec^-1
C. 1 msec^-1
D. 2 msec^-1
E. 4 msec^-1

Question 3:

• JAMB 1980

Which of the following statements are true of the law of universal gravitation?

A. Any two bodies attract each other with a force which is proportional to the difference of their masses
B. Any two bodies attract each other with a force which is inversely proportional to the square of the distance between them
C. Any two bodies attract each other with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them
D. Any two bodies attract each other with a force which is proportional to the square of the distance between them
E. Any two bodies attract each other with a force which is proportional to the sum of their masses

Question 4:

• JAMB 1980

Which of the following statements are true of the law of universal gravitation?

A. Any two bodies attract each other with a force which is proportional to the difference of their masses
B. Any two bodies attract each other with a force which is inversely proportional to the square of the distance between them
C. Any two bodies attract each other with a force which is proportional to the product of their masses and inversely proportional to the square of the distance between them
D. Any two bodies attract each other with a force which is proportional to the square of the distance between them
E. Any two bodies attract each other with a force which is proportional to the sum of their masses

Question 5:

• JAMB 2004

I. Jet propelled aircraft
II. Rocket propulsion
III. The recoil of a gun
IV. A person walking
Which of the above is based on Newton's third law of motion

A. I and II only
B. I, II, III, and IV only
C. I and III only
D. I, II and III only