# 91 - Rotational mechanics Questions Answers

A meter stick held vertically with one end on the floor and is allowed to fall. The speed of the other end when it hits the floor assuming that the end at the floor does not slip is ?

**Asked By: SHARMILA BISWAL**2 year ago

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**Asked By: DEBASIS BHOWMIK**3 year ago

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A bead of mass m is attached to one end of a spring of natural length R and spring constant , K= (sqrt3 +1)/R. The other end of the spring is fixed at a point A on a smooth vertical ring of radius R. The normal reaction at B just after it is released to move is? The angle between A and B is 30 degree.

**Asked By: ARJUN**3 year ago

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four thin uniform rods each of length l and mass m are joined to form a square, The moment of inertia of square about an axis along its one diagonal is

**Asked By: BIPIN SAHAY**3 year ago

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Four thin uniform rods each of length l and mass m are joined to form a aquare. The moment of inertia of square about an axis along its one diagonal is

**Asked By:**3 year ago

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Weights of 1g, 2g, .....,1oog are suspended from 1cm, 2cm, ......,10cm marks respectively of a light meter scale. Where should it be suppoerted for the system to be in equilibrium?

a) 55cm

b) 60cm

c) 66cm

d) 72cm

**Asked By: AISHWARYA SHANKAR**3 year ago

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a unoform horizontal meter scale of mass m is suspended by two vertical strings attached to the two ends. A body of mass 2m is placed on the 75 cm mark. The tension in two strings are in the ratio of:-

a) 1:2

b) 1:3

c) 2:3

d) 3:4

**Asked By: AISHWARYA SHANKAR**3 year ago

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## a body projected from level ground with a velocity of 30 m/s and 30degrees to horizontal. the angle made by its direction of motion 1.5 seconds after projection with horizontal is?

**Asked By: SUMANTH**4 year ago

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a body projected from level ground with a velocity of 30 m/s and 30degrees to horizontal. the angle made by its direction of motion 1.5 seconds after projection with horizontal is?

**Asked By: SUMANTH**4 year ago

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