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Q.

Match the List-I to List-II

LIST - I LIST - II
a) Centrifugal force e) Along the axis of rotation
b) Centripetal force f) Towards the centre of rotation
c) Tangential force g) Away from the centre of rotation
d) Angular velocity h) Changes the angular velocity

 

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a

a-h, b-g, c-f, d-e

b

a-g, b-g, c-f, d-e

c

a-e, b-h, c-e, d-f

d

a-g, b-f, c-h, d- e

answer is B.

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Detailed Solution

Centripetal force is real force acting on the object and it is radially inward.

When the observer is on the object itself (Which is non - inertial frame) , centrifugal force appears to act on the object and it is opposite to the direction of acceleration of the object.So centifugal force is radially outward.

Tangential force produces moment about the axis of rotation , moment creates angular acceleration of the object and its angular velocity changes. Angular velocity is an axial vector and its direction is determined by right hand thumb rule.

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