Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
The SI unit of centripetal force is newton (N).
APPEARS IN
संबंधित प्रश्न
Give the expression for mechanical advantage of an inclined plane in terms of the length of an inclined plane.
A body of mass m is moving with a uniform velocity u. A force is applied on the body due to which its velocity changes from u to v. How much work is being done by the force?
What do you mean by uniform circular motion?
How is 1 kgf related to the SI unit of force?
What is the work done by the gravitational force on the moon that revolves around the earth?
A coolie carrying a load on his head and moving on a frictionless horizontal platform does no work. Explain the reason why.
A machine raises a load of 750 N through a height of 16 m in 5 seconds. Calculate the power at which the machine works.
A coolie carries a load of 30 kgf through a distance of 500 m in 5 minutes while another coolie B carries the same load through the same distance in 10 minutes. Compare the
(i) work done, and
(ii) power developed. (Take: g = 10md−2)
A force of 1 kgf displaces a body by a distance of 10 cm
(i) in direction of force,
(ii) normal to the force
(iii) at an angle of 60° to the direction of the force.
Calculate the amount of work done in each case. (Take: g = 9.8 ms−2 )
