(A) Width
(B) Shape
(C) Length
(D) Volume
According to Hooke’s law the force needed to elongate an elastic body by an amount S is proportional to?
(A) S
(B) 1/S2
(C) 1/S
(D) S2
The rotational analogue of force in linear motion is?
(A) Torque
(B) Moment of Inertia
(C) Angular momentum
(D) Weight
A hole is drilled through the earth along a diameter and a stone dropped into it. When the stone is at the center of the earth it has?
(A) Potential energy
(B) Mass
(C) Weight
(D) Acceleration
In order to cause a moving body to pursue a circular path, it is necessary to apply?
(A) Centrifugal force
(B) Centripetal force
(C) Gravitational force
(D) Internal force
A body in equilibrium may not have?
(A) Acceleration
(B) Kinetic energy
(C) Velocity
(D) Momentum
A force of 3 N acts perpendicularly to a force of 4 N, their resultant has a magnitude of?
(A) 3 N
(B) 4 N
(C) 5 N
(D) 10 N
Minimum number of unequal forces whose vector sum can equal zero is?
(A) 1
(B) 2
(C) 3
(D) 4