Advertisements
Advertisements
Question
Explain why One leans forward while climbing up a hill.
Advertisements
Solution
A person going uphill has to bend forward but while coming down has to bent backward, this is to keep the CG at the centre of the body and between his feet.
RELATED QUESTIONS
Where is the centre of gravity of a uniform ring situated?
The centre of gravity of a uniform ball is ______.
The centre of gravity of a hollow cone of height h is at distance x from its vertex where the value of x is ______.
Can the CG be situated outside the material of the body? Give an example.
A boy of mass 40 kg runs up a height of 30 steps, each 20 cm high. Find:
(i) The force of gravity acting on the boy.
(ii) The work done by the boy against gravity. (Take g = 9.8 ms−2)
Write about the experiment to find the centre of gravity of the irregularly shaped plate.
For regular shapes of the small body, which of the following statement is true?
A metal sphere is hanging from the ceiling of a vehicle. If the vehicle is moving along the horizontal road with uniform acceleration 'a' then the suspended thread of the sphere gets inclined to the vertical at an angle 'θ'. The value of acceleration 'a' is (g = acceleration due to gravity) ______.
In a non-uniform gravitational field, how does the Centre of Gravity relate to the Centre of Mass?
