physics Archives - Page 297 of 439

A ball f mass 5.0kg hits a smooth vertical wall normally with a speed of 2ms-1. Determine the magnitude of the resulting impulse.

A. 2.0kgms-1 B. 10.0kgms-1 C. 5.0kgms-1 D. 2.5kgms-1 Correct Answer: Option B A. 2.0kgms-1 Explanation I = Ft = m(v – u) = 5 x 2 = 10kgms-1

The mass on a loaded spiral spring oscillates vertically between two extreme positions P and R equidistant from the equilibrium position Q. Which of the following statements about the system is not correct

by Sunday | May 21 | Physics WAEC

A. the momentum of the mass is maximum at Q B. the elastic potential energy of the spring is maximum at Q C. the kinetic energy of the mass is maximum at P D. the total energy of the system is always constant Correct Answer: Option D D. the total energy of the system...

The period of oscillatory motion is defined as the?

by Sunday | May 21 | Physics WAEC

A. average of the time used in completing different numbers of oscillations B. time to complete a number of oscillations C. time to complete one oscillation D. time is taken to move from one extreme position to another Correct Answer: Option C C. time to complete one...

A moving object is said to have a uniform acceleration if its.

by Sunday | May 21 | Physics WAEC

A. displacement decreases at a constant rate B. speed is directly proportional with time C. velocity increases by equal amount in equal time intervals D. velocity varies inversely with time Correct Answer: Option C C. velocity increases by equal amount in equal time...