Physics - Laws of Motion
Practise 30 WBJEE previous year questions on Laws of Motion, compiled from papers spanning 2009 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty WBJEE tests.
Laws of Motion has been asked in 18 of the 18 years of WBJEE papers analysed (2009–2026), with 30 questions in all. 17% of them were easy, 67% moderate and 17% tough. Most of its questions came from 2010, with 3 questions that year. In the last three years (2024–2026) it had 5 questions across 3 papers, about 1.7 per paper.
The chapter's 5 topics are not weighted equally: Newton's laws of motion (12 questions, 40%), Frictional force (7 questions, 23%), and Equilibrium of Forces (5 questions, 17%) have been asked the most. Newton's laws of motion has also led over the last five years, with 3 questions. Newton's laws of motion has produced the most tough questions (2).
- 1Three block of masses kg, kg and kg are placed on a horizontal frictionless surface and a force of N pulls the system as shown below. The va2026Newton's laws of motion
- 2A particle of mass is suspended from a point by a string of length . It is given a velocity at the bottom. The difference in tension at poin2026Non-uniform Circular Motion
- 3The minimum force required to start pushing a body up a rough (having co-efficient of friction ) inclined plane is while the minimum force n2025Frictional force
- 4A force is acting on a body of mass . The body was initially at rest at the origin. The co-ordinates of the body after time ' t ' will be2025Newton's laws of motion
- 5As shown in the figure a block of mass 10 kg lying on a horizontal surface is pulled by a force F acting at an angle , with horizontal for ,2024Frictional force
- 6A body of mass \(2 {~kg}\) moves in a horizontal circular path of radius \(5 {~m}\). At an instant, its speed is \(2 {5} {~m} / {s}\) and is2023Newton's laws of motion
- 7If a string, suspended from the ceilling is given a downward force , its length becomes , Its length is , if the downward force is . What is2022Equilibrium of Forces
- 8A golf ball of mass placed on a tee, is struck by a golf-club. The speed of the golf ball as it leaves the tee is , the time of contact on t2022Equilibrium of Forces
- 9Three blocks are pushed with a force across a frictionless table as shown in figure. Let be the contact force between the left two blocks an2021Newton's laws of motion
- 10A simple pendulum, consisting of a small ball of mass attached to a massless string hanging vertically from the ceiling, is oscillating with2021Non-uniform Circular Motion
- 11A block of mass m rests on a horizontal table with a co-efficient of static friction What minimum force must be applied on the block to drag2020Newton's laws of motion
- 12A metallic block of mass is dragged with a uniform velocity of on a horizontal table for . The co-efficient of static friction between the b2020Frictional force
- 13Two weights of the mass and are joined by an inextensible string of negligible mass passing over a fixed frictionless pulley. The magnitude 2019Equilibrium of Forces
- 14A block of mass is placed on a horizontal table and another block of mass is placed on top of it. An increasing horizontal force \(F= t\) is2018Frictional force
- 15The velocity of a particle (under a force ) depends on its distance from the origin (with . Find how the magnitude of the force on the parti2018Newton's laws of motion
- 16A block of mass starts from rest at and moves along the -axis under the action of a force where is time and . The distance the block will tr2017Newton's laws of motion
- 17Work done for a certain spring when it is streched to 1mm from mean position is 10J amount of work that must be done on the spring to stretc2016Spring force
- 18A mass of is suspended by means of a thread. The system is (i) lifted up with an acceleration of (ii) lowered with an acceleration of . The 2016Equilibrium of Forces
- 19Block lying on a table weighs W. The coefficient of static friction between the block and the table is . Assume that the cord between and th2015Equilibrium of Forces
- 20A smooth massless string passes over a smooth fixed pulley. Two masses and are tied at the two ends of the string. The masses are allowed to2014Newton's laws of motion
- 21To determine the coefficient of friction between a rough surface and a block, the surface is kept inclined at and the block is released from2014Frictional force
- 22A block of mass is hanging over a frictionless light fixed pulley by an inextensible string of negligible mass. The other end of the string 2013Newton's laws of motion
- 23A box of mass is placed on the roof of a car. The box would remain stationary until the car attains a maximum acceleration. Coefficient of s2012Frictional force
- 24Three blocks of masses 4 kg. 2 kg. 1 kg respectively are in contact on a frictionless table as shown in the figure. If a force of is applied2012Newton's laws of motion
- 25A cricket ball of mass \(0.25 {~kg}\) with speed \(10 {~m} / {s}\) collides with a bat and returns with same speed within \(0.01 {~S}\). The2011Newton's laws of motion
- 26Two blocks of and are in contact on a frictionless table. If a force of is applied on block, then the force of contact between the two block2010Newton's laws of motion
- 27A boy of mass is climbing a vertical pole at a constant speed. If the coefficient of friction between his palms and the pole is 0.8 and , th2010Frictional force
- 28A spring of force constant is cut into three equal parts. The force constant of each part would be2010Spring force
- 29Two massless springs of force constants and are joined end to end. The resultant force constant of the system is2009Spring force
- 30A spring of force constant is cut into two equal halves. The force constant of each half is2009Spring force
Frequently Asked Questions
1.How many questions are available for Laws of Motion?
This chapter includes 30 questions compiled from WBJEE papers spanning 2009 to 2026.
2.Are these questions only from WBJEE, or from other exams too?
These are WBJEE questions specifically for the Laws of Motion chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Laws of Motion an important chapter for WBJEE Physics?
Laws of Motion has appeared in 18 of the 18 years of WBJEE papers covered here, with 30 questions across 18 papers - about 2 per paper it appears in.
4.What is the difficulty level of Laws of Motion questions in WBJEE?
Of the 30 questions analysed for this chapter, 17% are easy, 67% moderate and 17% tough. 2010 had the most, with 3 questions.
5.Which topics in Laws of Motion should I focus on?
These topics have carried the most weightage in Laws of Motion:
- Newton's laws of motion - 12 questions (40%)
- Frictional force - 7 questions (23%)
- Equilibrium of Forces - 5 questions (17%)
- Newton's laws of motion has produced the most tough questions (2).
6.Is Laws of Motion's weightage in WBJEE going up or down?
Across all 18 papers analysed, Laws of Motion has averaged about 1.7 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 1.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.