Physics Past Questions and Answers

A mass of mass m, experiences a viscous drag, F and an upthrust, U as he descends towards the ground at a steady velocity, Using a parachute. If the acceleration of free fall is g, which of the following expressions is correct?

A FU = mg
B U + F - mg = 0
C U - F = mg
D F - U - mg = 0

Question 1152:

a body moving at a constant speed accelerates when it is in

A Rectilinear motion
B Translational motion
C Circular motion
D Vibrational motion

Question 1153:

An object of mass 2 kg moves with a uniform speed of 10ms^-1 for 5s along an straight path. Determine the magnitude of its acceleration

A 0 ms^-2
B 1 ms^-2
C 3 ms^-2
D 4 ms^-2

Question 1154:

The team rectilinear acceleration means the rate of increase of

A Velocity along a circular path in a unit time
B Distance along a rectangular path in a unit time
C Displacement along a straight-line path in a unit time
D Velocity along a straight-line path in a unit time

Question 1155:

A body moving with an initial velocity U accelerates until it attains a velocity of V within a time t. The distance, s covered by the body is given by the expressions

A S = (\(\frac{v - u}{2}\))t
B S = (\(\frac{v + 2u}{2}\))t
C S = (\(\frac{v + u}{2}\))t
D S = (\(\frac{2v + u}{2}\))t