Jamb Physics 2018 Past Questions and Answers

Question 46:

• JAMB 2018

A ball of mass 800g moving horizontally with a speed of 5m/s hits a vertical wall and rebounds with the same speed. The impulse experienced by the ball is?

A. 0kgm
B. 2kgm/s
C. 4kgm/s
D. 8kgm/s

Question 47:

• JAMB 2018

The force between the molecules of a liquid in contact with that of a solid is?

A. Adhesive
B. Cohesive
C. Magnetic
D. Repulsive

Question 48:

• JAMB 2018

A body of mass 100g moving with a velocity if 10ms-1 collides with a wall. If after collision it moves with a velocity of 2.0ms−1 in the opposite direction, calculate the change in momentum.

A. 0.8Ns
B. 1.2Ns
C. 12.0Ns
D. 80.0Ns

Question 49:

• JAMB 2018

A 20kg mass is to be pulled up a slope inclined at 30° to the horizontal. If efficiency of the plane is 75%. The force required to pull the load up the plane is J [g=10ms\(^{− 2}\)]

A. 87N
B. 73.5N
C. 133.3N
D. 533.2N

Question 50:

• JAMB 2018

The tendency of a body to remain at rest when a force is applied to it is called.

A. Impulse
B. Momentum
C. Inertia
D. Friction