JEE Main Physics: Laws of Motion Practice Questions

21 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

Q1.
$A force of 10 N acts on a body of mass 2 kg. What is the acceleration produced in the body?$
Easy
Q2.
$Which of the following is a measure of the inertia of a body?$
Easy
Q3.
$A rocket works on the principle of conservation of which physical quantity?$
Easy
Q4.
$If a body is moving with constant velocity, what is the net external force acting on it?$
Easy
Q5.
$An impulse is equal to the change in which quantity?$
Easy
Q6.
$A block of mass 5 kg is placed on a rough horizontal surface with coefficient of static friction 0.4. A horizontal force of 15 N is applied to the block. What i$
Medium
Q7.
$A body of mass 2 kg is moving along the x-axis with a velocity of 4 m/s. A force of 6 N is applied in the negative x-direction for 2 seconds. What is the final$
Medium
Q8.
$Two blocks of masses 3 kg and 2 kg are connected by a light string passing over a frictionless pulley. The system is released from rest. What is the tension in$
Medium
Q9.
$A rocket of initial mass 1000 kg ejects gas at a rate of 20 kg/s with a velocity of 500 m/s relative to the rocket. What is the initial acceleration of the rock$
Medium
Q10.
$A particle of mass 0.5 kg is moving in a circle of radius 2 m with a constant speed of 4 m/s. What is the net force acting on the particle?$
Medium
Q11.
$A block of mass m is placed on a wedge of mass M and angle theta. The wedge is placed on a smooth horizontal surface. If the coefficient of friction between the$
Hard
Q12.
$A particle of mass m moves along a circle of radius R with a constant speed v. What is the average force exerted on the particle over a quarter of a revolution?$
Hard
Q13.
$A block of mass 5 kg is placed on a rough horizontal surface with a coefficient of static friction 0.4. A horizontal force of 20 N is applied to the block. What$
Medium
Q14.
$A body of mass 1 kg is acted upon by two perpendicular forces of 3 N and 4 N. What is the magnitude of the acceleration of the body?$
Medium
Q15.
$A monkey of mass 15 kg climbs a rope which can withstand a maximum tension of 200 N. What is the maximum acceleration with which the monkey can climb up the rop$
Medium
Q16.
$Two blocks of masses 2 kg and 4 kg are connected by a string and placed on a frictionless horizontal surface. A force of 12 N is applied on the 2 kg block. What$
Medium
Q17.
$A block of mass m is placed on a wedge of mass M and angle theta. The wedge is placed on a smooth horizontal surface. If the coefficient of friction between the$
Hard
Q18.
$A p a r t i c l eo f ma ss mm o v es a l o n g a c i r c l eo f r a d i u sr w i t ha ce n t r i p e t a l a cce l er a t i o n t ha t v a r i es w i t h t im e a s a = k t^{2} . W ha t i s t h e p o w er d e l i v er e d t o t h e p a r t$
Hard
Q19.
$A block of mass m is pushed against a spring of constant k by a distance x on a rough horizontal surface with coefficient of friction mu. When released, the blo$
Hard
Q20.
$Two blocks of masses m1 and m2 are connected by a light string passing over a pulley of mass M and radius R. The pulley is a uniform disk. If the system is rele$
Hard
Q21.
$An object of mass 5 kg is moving with a velocity of 4 m/s. What is its linear momentum?$
Easy

Track your progress on Laws of Motion

Start Practising Free →