Forces in equilibrium questions | form two Physics

A uniform 50 cm ruler is freely pivoted at the 15 cm mark and it balances horizontally when a body of mass 40 g is hung from the 2 cm mark.

(i) Draw a clear diagram of the arrangement
(ii) Calculate the mass of the ruler

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UNSOLVED

A body is said to be in equilibrium if
A the body moves with uniform speed
B the net force acting on the body is zero
C the upward forces on the body counter balance some of the downward forces
D its centre of gravity is low positioned
E its centre of gravity is high.

Answer / Solution

UNSOLVED

The turning effect of force about a point is called its ______

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UNSOLVED

(i) Define centripetal force.
(ii) Mention two benefits of centripetal force.

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UNSOLVED

A force which causes anticlockwise rotation is said to have a positive_____

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UNSOLVED