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प्रश्न
Define contact forces.
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उत्तर
The forces which are applied on a body through a connector, are called contact forces. Forces like Frictional force, Mechanical force, etc., are the forces of contact.
संबंधित प्रश्न
Give one example in the given cases:-
A force moves a stationary body
Give one example in the given cases:-
A force changes the size of a body
Give one example in the given cases:-
A force changes the shape of a body
Give one example in the given cases:-
A force changes the shape of a body
Define the term linear momentum. State its S.I unit.
Complete the following:
1 N = ............kgf (approx)
Complete the following
Newton is the unit of .................
Newton's second law of motion applicable in all condition is:
(a) `F = (Δp)/(Δt)`
(b) F = ma
(c) `F = M (Δv)/(Δt)`
(d) all three
In which of the following sport the turning of the effect of force used
A mechanic unscrew a nut by applying a force of 140 N with a spanner of length 40 cm. What should be the length of the spanner if a force of 40 N is applied to unscrew the same nut?
