Advertisements
Advertisements
प्रश्न
Two identical bullets are fired one by a light rifle and another by a heavy rifle with the same force. Which rifle will hurt the shoulder more and why?
Advertisements
उत्तर
According to the conservation of momentum, the momentum of each identical bullet fired is equal to the momentum of the light rifle as well as the momentum of the heavy rifle but in opposite direction. So, the light rifle will recoil faster and hence it will hurt the shoulder more.
APPEARS IN
संबंधित प्रश्न
Give one example in the given cases:
A force stops a moving body
Give one example in the given cases:-
A force changes the shape of a body
Complete the following sentence:
Mass X change in velocity = ............x time interval.
Complete the following:
Force = mass x ............
The adjacent diagram shows a heavy roller, with its axle at O, which is to be raised on a pavement XY. If there is friction between the roller and pavement, show by an arrow on the diagram the point of application and the direction of force to be applied. If pivoted at O, now will it go up?
When an elevator starts to move down suddenly we experience 'weightlessness'. Explain.
Define contact forces.
______ has to be applied to change the ______ of a ______ object.
(moving, direction, force)
If we apply force against the direction of motion of the body, then the body will
One kilogram-force equals to
