The force required to produce an acceleration of 5 ms^-2 in a body of mass 2 kg is:

1. 2.5 N
2. 20 N
3. 10 N
4. 25 N

According to Newton's second law of motion, the change in momentum takes place in a direction :

1. opposite to the direction of force applied
2. perpendicular to the direction of the force applied
3. similar to the direction of the force applied
4. none of these

The S.I. unit of force is:

1. dyne
2. g cm s^-2
3. Newton
4. Joule

The acceleration produced in a body by a force of given magnitude depends on —

1. size of the body
2. shape of the body
3. mass of the body
4. None of these