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In a triangular lamina, where is the centre of gravity located?

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Important Questions on Work, Energy and Power

HARD

A uniform metre scale is in equilibrium as shown in the diagram :

Question Image

Calculate the weight of the metre scale.
Which of the following options is correct to keep the ruler in equilibrium when 40 gf weight is shifted to 0 cm mark?
F is shifted towards 0 cm or F is shifted towards 100 cm.

EASY
Centre of gravity of a freely suspended body always lies vertically below the point of suspension.
EASY
Centre of gravity of a body depends on the distribution of _____.
EASY
The centre of gravity of a ring is at the _____ of a ring.
EASY
Why is it easier to carry the same amount of water in two buckets, one in each hand rather than a single bucket?
EASY
Explain why a long pole is more beneficial to the tight rope walker if the pole has slight bending.
EASY
Where does the center of gravity of the atmosphere of the earth lie?
EASY
How can you find the center of gravity of an India map made of steel? Explain.
MEDIUM
What is the centre of gravity?
EASY
Where does the center of gravity lie, when a boy is doing sit-ups? Explain.
EASY
Explain some situations where the center of gravity of man lies outside the body.
MEDIUM
Explain some situations where the centre of gravity of man lies outside the body.
EASY
Explain why a long pole is more beneficial to the tight rope walker if the pole has slight bending.
MEDIUM
How will you determine the C.G. of an irregular lamina by the method of balance using a plumb line ? 
EASY
Assuming that the centre of gravity of a uniform thin rod to be at its mid-point, explain briefly how you obtain the position of C.G. of the triangular lamina.
EASY
A uniform metre scale of mass 80 g is to be balanced at 70 cm mark. Find from where a mass of 60 g be suspended to do so.    
EASY
Where does the centre of gravity of the atmosphere of the earth lie?
EASY
A man is standing against a wall such that his right shoulder and right leg are in contact with the surface of the wall along his height. Can he raise his left leg at this position without moving his body away from the wall? Why? Explain.