Question
True or false
1. ihe Eollowing qestions "we or Talse." . A bdy s to siatic eguititeium if the boudy is motionless and the net force and net 5) Angular momentum is conserved if there is no net force acting on the ) For a laminar body, the rotational inertia around an axis through the COM and noumal to the lamina is equal to the sum of the rotational inertias around axes perpendicular to each other, perpendicular to the COM axis, and passing through the COM The "Rule of Three Forces" states that if an extended body is acted on by at least d) three fiorces, they must act through a common point. e) Since torque is a force at right angles to the moment arm, a torque cannot do work. 0 Ifa body is at rest, any frictional force present always acts to oppose the incipient g) Ifno net force acts on a system, the velocity of the center of mass of the system is motion. a constant. h) Momentum and kinetic energy are conserved in a collision. ) The center of percussion of a baseball bat is the spot on the bat where you hit the ball in order to feel maximum impulse on your hands. ) Linear momentum is conserved if there is no net torque acting on the system.
Explanation / Answer
a. True
B. False
C.True
D.True
E.False
F.false
G.True
H.false
I. True
J. False
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