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A body moving in a circular path with a constant speed has a
A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).
A body that is moving with uniform acceleration covers 200 m in the first 2 s and 220 m in the next 4 s. The velocity in m/s after 7 s is
A bomb at rest explodes into a big number of tiny fragments. The total momentum of all the fragments
A bomb, initially at rest, explodes into a large number of tiny fragments. The total momentum of all the fragments
A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls
A bucket of water is hung from a spring balance. A piece of iron is suspended in the water without touching the sides or touching the bottom of the bucket. The reading of the spring balance
A bullet is fired from a rifle which recoils after firing. The ratio of kinetic energy of the rifle to that of the bullet is
A bullet of mass m & velocity a is fired in to a big block of wood of mass M. The final velocity of the system is
A capacitor (condenser) is used in an electrical circuit in order to
