forces

Question 1

define field of force

Answer 1

field of force is the region of space within which a force is experienced

Question 2

define upthrust

Answer 2

upthrust is the upward force exerted by a fluid on the body of a fluid due to a difference in pressure between upward and lower surface of object

Question 3

define moment

Answer 3

moment is the product of force and perpendicular distance from line of action of force to pivot

Question 4

define torque

Answer 4

torque is defined as the product of one of the forces of the couple and the perpendicular distance between the line of actions of the forces

Question 5

define POM

Answer 5

for a body to be in rotational equilibrium, sum of total clockwise moment about any pivot is equal to sum of total anticlockwise moment about the same pivot.

Question 6

centre of gravity

Answer 6

centre of gravity is defined as the single point through which the entire weight of object appears to act