Post Utme Physics Past Questions and Answers

Question 376:

In elastic collision, which of the following quantities is conserved?

A. Kinetic energy
B. Potential energy
C. Activation energy
D. Conservation energy

Question 377:

A weight of 20 N hangs from a fixed point by a light inextensible string.
It is pulled aside by a horizontal force with the string inclined at an angle of 30° to the vertical. The tension in the string is _______

A. 11 N
B. 40 N
C. 5N
D. 30N

Question 378:

Astone of mass 50 kg released from a height of 2 m above the ground If the stone falls freely to a height of 5 mabove the ground, its velocity is ____________

A. 19.6 m/s
B. 49.0 m/s
C. 17.15 m/s
D. 39.2 m/s

Question 379:

Calculate the kinetic energy of a trolley of mass 40 kg moving with a velocity 0.5 m/s

A. 20J
B. 5J
C. 15J
D. 10 J

Question 380:

A car of mass 500 kg accelerates from rest at 1 m/s2. What is the total distance covered in 1 minute?

A. 2000m
B. 3600 m
C. 1800 m
D. 2400 m