Forces are called coplanar when all of them acting on body lie in __________________?

A. One point
B. One plane
C. Different planes
D. Perpendicular planes

Which of the following do not have identical dimensions ?

A. momentum and impulse
B. torque and energy
C. torque and work
D. kinetic energy and potential energy

The unit of force in S.I. units is________________?

A. Kilogram
B. Newton
C. Watt
D. Dyne

A force acting on a body may_________________?

A. introduce internal stresses
B. balance the other forces acting on it
C. retard its motion
D. change its motion

Effect of a force on a body depends upon ________________?

A. Magnitude
B. Direction
C. Position or line of action
D. All of the above

A force is completely defined when we specify_______________?

A. Magnitude
B. Direction
C. Point of application
D. All of the above

The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of__________________?

A. forces
B. independence of forces
C. dependence of forces
D. balance of force

If a number of forces act simultaneously on a particle, it is possible _____________________?

A. Not a replace them by a single force
B. To replace them by a single force
C. To replace them by a single force through c.g.
D. To replace them by a couple

Which is the correct statement about law of polygon of forces ?

A. If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the forces are in equilibrium
B. If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon, then the forces are in equilibrium
C. If a polygon representing forces acting at a point is closed then forces are in equilibrium
D. If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

Forces are called concurrent when their lines of action meet in________________?

A. One point
B. Two points
C. Plane
D. Perpendicular planes