Advertisements
Advertisements
Question
Define 1 Dyne.
Solution
1 dyne is that force which when acting on a body of mass 1 gram, produces an acceleration of 1 cm s-2 in it.
1 dyne = 1 g × 1 cm s-2.
APPEARS IN
RELATED QUESTIONS
Define the term Force?
Complete the following sentence:
Mass X change in velocity = ............x time interval.
Complete the following sentence:
The mass of a body remains constant till the velocity of the body is ..........
Complete the following:
Force = mass x ............
Which of the following is not the force at a distance:
(a) electrostatic force
(b) gravitational force
(c) frictional force.
(d) magnetic force.
A lead bullet of mass 20g, travelling with a velocity of 350 ms-1, comes to rest after penetrating 40 cm in a still target. Find:
1) the resistive force offered by the target and
2) the retardation caused by it
A uniform car of mass 500g travels with a uniform velocity of 25 ms-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s calculate
1) the retardation
2) the distance which the car travels after the brakes are applied
3) The force exerted by the brakes.
Why is it easier to open a door by applying the force at the free end of it?
The adjacent diagram shows a heavy roller, with its axle at O, which is to be raised on a pavement XY. If there is friction between the roller and pavement, show by an arrow on the diagram the point of application and the direction of force to be applied. If pivoted at O, now will it go up?
______ has to be applied to change the ______ of a ______ object.
(moving, direction, force)