Physics Past Questions and Answers

A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms\(^{-2}\)]. Calculate the speed of projection

A 1.2ms^-1
B 6.0ms^-1
C 12.0ms^-1
D 0.6ms^-1

Question 1532:

A body of mass 20g projected vertically upwards in vacuum returns to the point of projection after 1.2s. [g = 10ms^-2]. Determine the potential energy of the body at the maximum height of its motion

A 0.36J
B 0.72J
C 360.00J
D 720.00J

Question 1533:

The maximum displacement on either side of the equilibrium position of an object in simple harmonic motion represents

A Period
B Amplitude
C Wavelength
D Frequency

Question 1534:

From Newton's first law of motion,

A A body can only undergo translational motion
B Once a body remains at rest no force acts on it
C The net force acting in uniform linear motion is zero
D A body's inertia is its weight

Question 1535:

A body of mass 11kg is suspended from a ceiling fan by an aluminum wire of length 2m and diameter 2mm. Calculate the elastic energy stored in the wire [Young's modulus of aluminum is 7.0 x 10¹⁰Nm^-2, g = 10ms^-2, \(\pi\) = 3.142]`

A 1.1 x 10^-1J
B 5.5 x 10^-2J
C 1.1 x 10^-4J
D 5.5 x 10^-8J