Forces

Question 0

Principle of moments ??

Answer 0

For any object to be in equilibrium, the sum of clockwise moments about any point provided by the forces acting on the object equals the sum of the anticlockwise moments about the same point.

Question 1

Define moment of force ??

Answer 1

The quantity which tells about the turning effect of the force is called its moment.

Question 2

Couple?? For understanding

Answer 2

Pure turning effect without acceleration.

Question 3

Torque?? For understanding

Answer 3

The turning effect or moment of a couple is known as it’s torque. ( magnitude of couple)

Question 4

Centre of gravity??

Answer 4

The centre of gravity of an object is defined as the point where all the weight of the object may be considered to act.

Question 5

Define torque of a couple??

Answer 5

Is the product of one of the forces and perpendicular distance between them.

Question 6

Force in terms of momentum??

Answer 6

Rate of change of momentum.