Ch 2 remaining1. If the magnitude of the sum of two vectors is
less than the magnitude of either vector, then:a. the scalar
product of the vectors must be negativeb. the scalar product of the
vectors must be positivec. the vectors must be parallel and in
opposite directionsd. the vectors must be parallel and in the same
direction2.I f . = 0 then it can be concluded that the two vectors
are a. parallel to each other b. perpendicular to each other c.
unit vectors d. anti parallel to each other 3.( x ). is equal to a.
0 b. 0 c. 1 d. 4.If x points along positive x- axis then vectors
and must lie in a. xy plane b. xz plane c. yz plane d. none 5.A. A
will be equal to a. A b. A2 c. 0d. A/2 6.If . = then angle between
and is a.0 b. 90 c. 45d. 1807. The vector product will be negative
if angle b/w two vectors is a. 170 b. 270 c. 180 d. 3608.If |A x B|
= 1/2 AB then angle between A and B is a. 300 b. 450 c. 600 d.
9009.The resultant of two vectors of magnitude 3 units and 4 units
is 7 units what is the value of dot product a. 7 units b. 12 units
c. 1 unit d. 25 units10.Given = i + and = i + k what is the value
of the scalar product of and ?a. 1 b. 2 c. 3 d. 211.If the body is
at rest or rotating with uniform angular velocity the torque will
be a. zero b. minimum c. maximum d. negative 12.If a certain force
pass through a point P then its moment about P is a. negative b.
0c. maximum d. minimum13.A body will be in translational
equilibrium only if the vector sum of allthe external forces acting
on body is equal to a. maximum b. unity c. zero d. double 14.If r =
5 m and f = 4 N are along same direction then torque is a. 5 Nm b.
20 Nm c. 10 Nm d. zero 15.Torque has zero value if angle between r
and F is a. 00 b. 300c. 450 d. 12016.The physical quantity which
produces angular acceleration is a. centripetal force b. torque c.
impulse d. force 17.For complete equilibrium a. = 0 b. F = 0c. = 0
F = 0d. none18.For second condition of equilibrium a. = 0 b. F =
0c. = 0d. both (a,c)19.The dimensions of torque are same as that of
a.work b. power c. force d. momentum
