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Chapter 2 - Vectors and Equilibrium - 3
1.
If two non-zero vectors A and B are parallel to each other then A.B =____________________
a) AC
b) AD
c) AB
2.
The dot product of two vectors A and B in terms of rectangular components is _____________________
a) A
x
B
x
+ A
Y
B
Y
- AzBz
b) A
x
B
x
+ A
Y
B
Y
+ AzBz
c) A
x
B
x
- A
Y
B
Y
+ AzBz
3.
Let
t
= r x F, the direction of
t
is ____________________ to the plane containing r x F.
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4.
When the line of action of an applied force passes through pivot point then the value of moment arm is ____________________
a) Zero
b) Two
c) One
5.
Torque is counter part of __________ for rotational motion.
a) Force
b) Product
c) Power
6.
The body will be in translational equilibrium when there is no _________ acceleration
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7.
If a body is rotating with uniform angular velocity it is said to be in ________________
a) dynamical equilibrium
b) Linear equilibrium
c) equilibrium
8.
Vector addition is
a) superlative
b) additive
c) commutative
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