A.Newton’s law
B.Law of gravitation
C.Law of nature
D.Principle of conservation of momentum
E.Principle of conservation of mechanical energy
A.kg – m
B.kg – m3
C.kg – m4
D.(kg – m)2
E.m4
A.Dynamic friction
B.Rolling friction
C.Kinetic friction
D.Limiting friction
E.Sliding friction
A.4?2/9 m/s2
B.3?2 m/s2
C.2?2/3 m/s2
D.?2/s m/s2
A.10
B.28
C.41
D.14
E.100
A.Augular speed
B.Linear velocity
C.Angular acceleration
D.Total angular momentum
E.All of the above
A.Sum of the forces is zero
B.Algebraic sum of the forces is zero
C.Sum of the resolved parts in any two perpendicular directions are both zero
D.None of the above
A.maximum kinetic energy and maximum potential energy
B.maximum kinetic energy and minimum potential energy
C.minimum kinetic energy and maximum potential energy
D.average kinetic energy and average potential energy.
A.0.00727 sec-1
B.0.000727 sec-1
C.0.0000727 sec-1
D.0.00000727 sec-1
E.None of the above
