81.
What is the direction of torque?

82.
The motion of a body around a circular path is an example of

83.
What should a person on a freely rotating turn table do to decrease his (angular) speed ?

84.
A sphere rolls down on two inclined planes of different angles but same height, it does so

85.
If a body moves with a constant speed in a circle

86.
A disk and a sphere of same radius but different masses roll on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first ?

87.
The washing machine works on the principle of

88.
When an unbalanced force acts on an object

89.
What type of force acts on a car moving around a curve?

90.
Damp clothes are dried in spin dryers by the action of