Kinematics and Newton's laws are the foundation of JEE mechanics, and almost every later chapter builds on them. This set mixes direct formula questions with the multi-step problems typical of JEE Main, and each explanation shows the full working. Take g = 10 m/s² throughout unless stated otherwise.
How to practise: read each question and tap the option you think is correct. You will see right away whether you got it, along with a short explanation, and your score is tracked at the bottom of the screen. This set has 15 questions.
Topics covered in this set
- Equations of motion and distance in the nth second
- Vertical and projectile motion
- Relative velocity
- Newton's second law and apparent weight
- Friction, connected bodies and the Atwood machine
- Impulse and circular motion
JEE Physics MCQs with answers and explanations
Q1. A ball is thrown vertically upward with a speed of 20 m/s. What maximum height does it reach? (g = 10 m/s²)
a) 80 m
b) 20 m
c) 40 m
d) 10 m
Q2. A projectile is launched at 20 m/s. What is its maximum horizontal range on level ground? (g = 10 m/s²)
a) 20√2 m
b) 40 m
c) 80 m
d) 20 m
Q3. A car starts from rest with a constant acceleration of 2 m/s². How far does it travel in the first 5 s?
a) 50 m
b) 20 m
c) 25 m
d) 10 m
Q4. A body starts from rest with an acceleration of 4 m/s². How far does it travel during the 3rd second?
a) 12 m
b) 10 m
c) 18 m
d) 8 m
Q5. Two trains move towards each other on parallel tracks at 60 km/h and 40 km/h. What is their relative speed?
a) 20 km/h
b) 50 km/h
c) 100 km/h
d) 2400 km/h
Q6. A force of 10 N acts on a 2 kg block on a frictionless surface. What is its acceleration?
a) 2 m/s²
b) 10 m/s²
c) 5 m/s²
d) 20 m/s²
Q7. A 60 kg person stands on a weighing scale in a lift that accelerates upward at 2 m/s². What does the scale read? (g = 10 m/s²)
a) 480 N
b) 720 N
c) 120 N
d) 600 N
Q8. A 4 kg block rests on a horizontal surface with coefficient of static friction 0.5. What is the maximum horizontal force that can be applied without moving it? (g = 10 m/s²)
a) 8 N
b) 40 N
c) 20 N
d) 2 N
Q9. In an Atwood machine, masses of 3 kg and 2 kg hang over a light frictionless pulley. What is the acceleration of the system? (g = 10 m/s²)
a) 10 m/s²
b) 5 m/s²
c) 1 m/s²
d) 2 m/s²
Q10. In an Atwood machine with masses of 3 kg and 2 kg over a light frictionless pulley, what is the tension in the string? (g = 10 m/s²)
a) 30 N
b) 20 N
c) 24 N
d) 25 N
Q11. A 0.5 kg ball hits a wall at 10 m/s and rebounds with the same speed. What is the magnitude of the impulse on the ball?
a) 20 N·s
b) 0 N·s
c) 5 N·s
d) 10 N·s
Q12. A 2 kg stone moves in a horizontal circle of radius 2 m at a constant speed of 4 m/s. What centripetal force acts on it?
a) 8 N
b) 4 N
c) 16 N
d) 32 N
Q13. For a road banked at angle θ with no friction, the speed at which a car can take a curve of radius r safely is given by:
a) cos θ = v² / rg
b) sin θ = v² / rg
c) tan θ = rg / v²
d) tan θ = v² / rg
Q14. A stone is thrown horizontally at 10 m/s from the top of a 45 m high cliff. How far from the base of the cliff does it land? (g = 10 m/s²)
a) 90 m
b) 15 m
c) 30 m
d) 45 m
Q15. A block slides down a frictionless incline of angle θ. What is its acceleration along the incline?
a) g sin θ
b) g cos θ
c) g
d) g tan θ
Quick revision notes
- Max height h = u²/2g; max range R = u²/g at 45°.
- Distance in nth second: sₙ = u + a(2n − 1)/2.
- Lift: apparent weight m(g ± a).
- Atwood: a = (m₁ − m₂)g/(m₁ + m₂), T = 2m₁m₂g/(m₁ + m₂).
- Banking without friction: tan θ = v²/rg.
Frequently asked questions
Are these JEE previous year questions?
No. They are original practice questions in the JEE style, covering the standard results you need to apply quickly.
Is this enough for JEE Advanced?
These build the base. JEE Advanced combines several ideas in one problem, such as friction on an incline with a pulley, so practise multi-concept problems after mastering these.
Which value of g should I use?
Use whatever the question gives. JEE often specifies g = 10 m/s² to keep arithmetic simple.
Comments
Post a Comment