EASY
TS EAMCET
IMPORTANT
Earn 100

A machine gun fires a bullet of mass 40 g with a velocity 1200 m s-1. The man holding it can exert a maximum force of 144 N on the gun. How many bullets can be fired per second?

100% studentsanswered this correctly

Important Questions on Laws of Motion

EASY
TS EAMCET
IMPORTANT
A machine gun has a mass 5 kg. It fires 50 gram bullets at the rate of 30 bullets per minute at a speed of 400 m s-1. What force is required to keep the gun in position?
MEDIUM
TS EAMCET
IMPORTANT
Starting from rest, a body slides down a 45° inclined plane in twice the time it takes to slide down the same distance in the absence of friction. The coefficient of friction between the body and the inclined plane is:
EASY
TS EAMCET
IMPORTANT
A particle of mass m is moving with velocity v1, it is given an impulse such that the velocity becomes v2. Then magnitude of impulse is equal to
EASY
TS EAMCET
IMPORTANT
A 50 kg ice skater, initially at rest, throws a 0.15 kg snowball with a speed of 35 m s-1. What is the approximate recoil speed of the skater?
EASY
TS EAMCET
IMPORTANT
A rifleman, who together with his rifle has a mass of 100 kg stands on a smooth surface and fires 10 shots horizontally. Each bullet has a mass 10 g and a muzzle velocity of 800 m s-1. The velocity which the rifleman attains after firing 10 shots is
EASY
TS EAMCET
IMPORTANT
A body of mass 2 kg is placed on a horizontal surface having kinetic friction 0.4 and static friction 0.5. If the force applied on the body is 2.5 N, then the frictional force acting on the body will be g=10 m s-2
EASY
TS EAMCET
IMPORTANT
A bag of sand of mass m is suspended by a rope. A bullet of mass m20 is fired at it with a velocity v and gets embedded into it. The velocity of the bag finally is