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 changes the shape of a body
Define Newton (the S.I unit of force)
Complete the following:
1 N = ............kgf (approx)
A body of mass 1 kg is thrown vertically up with an initial speed of 5 m s-1. What is the magnitude and direction of force due to gravity acting on the body when it is at its highest point? Take G = 9.8 n kg-1
A body of mass 1.5 kg is dropped from a height of 12 m. What is the force acting on it during its fall? (g = 9.8 ms−2)
Give two examples each of contact and non-contact forces.
______ has to be applied to change the ______ of a ______ object.
(moving, direction, force)
Give two examples to verify that a force tends to change the static condition of a body.
To produce a displacement ______ is required.
A mechanic unscrew a nut by applying a force of 140 N with a spanner of length 40 cm. What should be the length of the spanner if a force of 40 N is applied to unscrew the same nut?
