Physics Past Questions and Answers

A uniform metre rule of mass 90g is provided at the 40cm mark. If the rule is in equilibrium with an unknown mass m placed at the 10cm mark and a 72g mass at the 70cm mark, determine m

A 72g
B 102g
C 298g
D 504g

Question 2917:

The resultant of two forces acting on an object is maximum when the angle between them is

A 180^o
B 90^o
C 45^o
D 0^o

Question 2918:

The bob of a simple pendulum takes 0.25s to swing from its equilibrium position to one extreme end. Calculate its period

A 0.25s
B 0.50s
C 0.75s
D 1.00s

Question 2919:

The period of oscillation pf a particle executing simple harmonic motion is 4\(\pi\) seconds. If the amplitude of oscillation is 3.0m. Calculate its period

A 1.5ms^-1
B 3.0ms^-1
C 4.5ms^-1
D 6.0ms^-1

Question 2920:

An inelastic collision takes place between ball of known masses, just before the collision one of the ball is moving with a known velocity while the other is stationary. Which of the following physical quantities can be determined from the information given?

A Speed of each of the ball after collision
B Kinetic energy of each ball after collision
C Total momentum of the ball after collision
D Total momentum of the two ball after collision
E Mutual forces excerted by the balls