Laws of Motion: NEET questions with solutions

NEET uses this chapter for free-body-diagram numericals: connected bodies, friction, apparent weight in lifts, impulse, momentum conservation and circular motion on a level road. Marks are lost when students treat friction as always equal to μN, ignore the sign reversal of velocity in impulse problems, or confuse action-reaction pairs with balanced forces.

1. 1.A 0.40 kg football moving horizontally at 12 m/s strikes a vertical wall head-on and rebounds along the same line at 8 m/s. The ball is in…ImpulseEasySingle correct
2. 2.A 5.0 kg block rests on a frictionless horizontal floor. It is pulled by a rope with a constant force of 20 N directed at 37° above the…Newton's second law of motionEasySingle correct
3. 3.Four claims about action-reaction force pairs (Newton's third law) are listed below as I to IV. Select the option that names every correct…Newton's third law of motionEasyStatement based
4. 4.Two blocks of masses 5 kg and 3 kg hang at the two ends of a light inextensible string that passes over a light frictionless pulley fixed to…Solving problems in mechanics (connected bodies)MediumSingle correct
5. 5.A 4 kg crate rests on a horizontal floor. The coefficient of static friction between the crate and the floor is 0.5 and the coefficient of…FrictionMediumSingle correct
6. 6.A 60 kg student stands on a bathroom scale placed on the floor of a lift. The lift is moving upward but slowing down at a steady rate of 2.5…Apparent weight (Newton's second law)MediumSingle correct
7. 7.A car takes an unbanked, level circular turn of radius 50 m. The coefficient of static friction between the tyres and the road is 0.45. Take…Circular motion (car on a level road)MediumSingle correct
8. 8.A 4 kg block rests on a rough horizontal table. A light inextensible string tied to it runs horizontally to a light frictionless pulley at…Solving problems in mechanics (friction with connected bodies)HardSingle correct
9. 9.A 60 kg skater stands at rest on frictionless ice holding a 3 kg ball. She throws the ball horizontally forward so that, just after release…Conservation of momentumHardSingle correct