Post Utme Physics Past Questions and Answers

Question 411:

Calculate the time taken for a car to cover a distance of 125 m if the initial speed is 5 m/s and it has a constant acceleration of 1.5 m/s2

A. 8s
B. 10s
C. 15 s
D. 12 s

Question 412:

Calculate the braking force to bring a body of mass 1 kg to rest from 2 5 m/s on a level ground in 60 m with uniform retardation.

A. 5.2N
B. 5.5N
C. 5.6 N
D. 5.0N

Question 413:

A drop hammer is lifted to a height of 50 m above the ground and then allowed to fall from rest on to a forging at ground level.
Calculate the downward velocity of the hammer when it strikes the forging. (g-10 m/s2)

A. 10.95 m/s
B. 25.8 m/s
C. 31.6 m/s
D. 35.5 m/s

Question 414:

A uniform rod of weight 10 N is balanced at a point 75 cm from the end B The pivot is removed to point 30 cm from A
What force must be applied at A to balance the rod horizontally?

A. 25 N
B. 10 N
C. 30N
D. 15N

Question 415:

An equilateral triangular lamina has each side equal to 50 cm.
How far is the centre of gravity from each vertex?

A. 34.64 cm
B. 33.3 cm
C. 28.9 cm
D. 36.9cm