Mechanics Practice Questions

JEE · Physics · 1273 free MCQs with instant results and detailed explanations.

1273

Total

279

Easy

508

Medium

486

Hard

Start Practicing Mechanics

Take a timed quiz or customize your practice session

Quick Quiz (10 Qs) → Mock Test (25 Qs) ⚙ Customize

Topics in Mechanics

Work Energy Power 208

Rotational Motion 330

Gravitation 313

Newton's Laws 209

Kinematics 213

Sample Questions from Mechanics

Here are 10 sample questions. Start a quiz to get randomized questions with scoring.

Easy

An object is thrown vertically upwards with an initial velocity of 20 m/s. What is the maximum height it reaches? (Take g = 9.8 m/s²)

A. 20.4 m

B. 15.2 m

C. 10.2 m

D. 25.6 m

Show Answer & Explanation

Correct Answer: A

Using the formula h = (u²)/(2g), where u = 20 m/s and g = 9.8 m/s², we calculate h = (20²)/(2*9.8) = 20.4 m.

Easy

A ball is thrown horizontally from a height of 10 m. How long will it take to hit the ground? (Take g = 9.8 m/s²)

A. 1.43 s

B. 1.25 s

C. 0.5 s

D. 2 s

Show Answer & Explanation

Correct Answer: A

Using the formula for free fall, t = √(2h/g), where h = 10 m and g = 9.8 m/s², we find t = √(2*10/9.8) ≈ 1.43 s.

Easy

If a cyclist travels at a uniform speed of 15 m/s for 10 seconds, what distance does he cover?

A. 150 m

B. 100 m

C. 200 m

D. 75 m

Show Answer & Explanation

Correct Answer: A

Using the formula distance = speed × time, we calculate distance = 15 m/s × 10 s = 150 m.

Medium

A ball is thrown vertically upwards with a speed of 15 m/s. How long will it take to reach the highest point?

A. 1.5 s

B. 2.0 s

C. 3.0 s

D. 4.0 s

Show Answer & Explanation

Correct Answer: A

Time to reach max height is given by t = u/g. Here, u = 15 m/s, g = 9.8 m/s².

Medium

Which of the following is true for a body moving with uniform velocity?

A. Acceleration is zero

B. Distance is equal to displacement

C. Speed varies

D. Direction changes constantly

Show Answer & Explanation

Correct Answer: A

For uniform velocity, acceleration is zero, meaning speed and direction remain constant.

Medium

A cyclist travels 30 m east then 40 m north. What is the magnitude of the resultant displacement?

A. 50 m

B. 70 m

C. 40 m

D. 30 m

Show Answer & Explanation

Correct Answer: A

Using Pythagoras theorem: Resultant displacement = √(30² + 40²) = 50 m.

Medium

A stone is dropped from a height of 20 m. How long does it take to hit the ground? (g = 9.8 m/s²)

A. 2.0 s

B. 1.5 s

C. 1.0 s

D. 3.0 s

Show Answer & Explanation

Correct Answer: A

Using the equation h = 0.5gt², solve for t. Here, h = 20 m and g = 9.8 m/s².

Hard

A cyclist travels along a circular path of radius 20 m with a constant speed. If the cyclist takes 10 seconds to complete one full lap, what is the magnitude of the centripetal acceleration experienced by the cyclist?

A. 4 m/s²

B. 8 m/s²

C. 6 m/s²

D. 10 m/s²

Show Answer & Explanation

Correct Answer: A

The speed v of the cyclist can be calculated using the formula v = 2πr/T, where T is the time period. Thus, v = 2π(20)/10 = 12.57 m/s. The centripetal acceleration a_c = v²/r = (12.57)²/20 = 4 m/s².

Hard

A particle moves in a straight line with an acceleration given by a(t) = 2t. If its initial velocity is 3 m/s at time t=0, what will be its velocity at t=3 seconds?

A. 15 m/s

B. 12 m/s

C. 9 m/s

D. 6 m/s

Show Answer & Explanation

Correct Answer: A

To find the velocity, integrate the acceleration. v(t) = ∫a(t) dt = ∫2t dt = t² + C. Given v(0) = 3, C = 3. Therefore, v(3) = 3² + 3 = 15 m/s.

Q10

Hard

A particle moves with uniform acceleration. If it travels 30 m in the first 5 seconds and 50 m in the next 5 seconds, what is its acceleration?

A. 4 m/s²

B. 5 m/s²

C. 6 m/s²

D. 7 m/s²

Show Answer & Explanation

Correct Answer: A

Using the equations of motion, we can set up equations for each segment and solve for acceleration.

Showing 10 of 1273 questions. Start a quiz to practice all questions with scoring and timer.

Practice All 1273 Questions →

More Physics Chapters

1 Waves and Oscillations

1280 Qs →

2 Thermodynamics

1704 Qs →

3 Electrostatics and Current Electricity

1435 Qs →

4 Magnetism and EMI

1523 Qs →

5 Optics

1410 Qs →

6 Modern Physics

1507 Qs →

7 Units and Measurements

1305 Qs →

8 Kinematics

1281 Qs →

Other JEE Subjects

⚗️ Chemistry → 📐 Mathematics →

Mechanics — JEE Physics Practice Questions Online

This page contains 1273 practice MCQs for the chapter Mechanics in JEE Physics. The questions are organized by difficulty — 279 easy, 508 medium, 486 hard — so you can choose the right level for your preparation.

Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 5 topics, giving you comprehensive coverage of the entire chapter.