NEET Physics: Laws of Motion — MCQ Test 11

Q6. A \( 7 \, \text{kg} \) block on a \( 53^\circ \) incline (\( \mu_k = 0.2 \)) is pulled up by a \( 9 \, \text{kg} \) mass over a pulley. A \( 30 \, \text{N} \) force at \( 37^\circ \) to the incline opposes the \( 7 \, \text{kg} \) block. What is the acceleration? (Take \( g = 10 \, \text{m/s}^2 \), \( \sin 53^\circ = 0.8 \), \( \cos 53^\circ = 0.6 \), \( \sin 37^\circ = 0.6 \), \( \cos 37^\circ = 0.8 \))

Q7. A \( 4000 \, \text{kg} \) rocket accelerates upward at \( 5 \, \text{m/s}^2 \) while ejecting gas at \( 80 \, \text{kg/s} \) with speed \( 120 \, \text{m/s} \) relative to the rocket. What is the total thrust? (Take \( g = 10 \, \text{m/s}^2 \))

Q8. A \( 8.5 \, \text{kg} \) block on a horizontal surface (\( \mu_k = 0.25 \)) is pulled by a \( 4.5 \, \text{kg} \) mass over a pulley. A \( 15 \, \text{N} \) force opposes the \( 8.5 \, \text{kg} \) block. What is the acceleration? (Take \( g = 10 \, \text{m/s}^2 \))

Q9. A \( 0.7 \, \text{kg} \) stone in a vertical circle of radius \( 2.5 \, \text{m} \) has a tension of \( 25 \, \text{N} \) at the bottom and \( 5 \, \text{N} \) at the top. What is the tangential acceleration? (Take \( g = 10 \, \text{m/s}^2 \))

Q10. A \( 5 \, \text{kg} \) block on a \( 37^\circ \) incline (\( \mu_s = 0.5 \)) is pushed downward by a force at \( 53^\circ \) to the incline with just enough force to start motion. What is the force? (Take \( g = 10 \, \text{m/s}^2 \), \( \sin 37^\circ = 0.6 \), \( \cos 37^\circ = 0.8 \), \( \sin 53^\circ = 0.8 \), \( \cos 53^\circ = 0.6 \))

NEET Physics — Laws of Motion

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A \( 0.4 \, \text{kg} \) ball at \( 40 \, \text{m/s} \) hits a wall at \( 45^\circ \) and rebounds at \( 30^\circ \) with speed \( 35 \, \text{m/s} \). What is the impulse along the wall? (Take \( \sin 45^\circ = \cos 45^\circ = 0.707 \), \( \sin 30^\circ = 0.5 \), \( \cos 30^\circ = 0.866 \))

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Laws of Motion. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Rebounds, Decelerating, Tangentially, Horizontal, Connected, and Acceleration.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A \( 0.4 \, \text{kg} \) ball at \( 40 \, \text{m/s} \) hits a wall at \( 45^\circ \) and rebounds at \( 30^\circ \) with speed \( 35 \, \text{m/s} \). What is the impulse along the wall? (Take \( \sin 45^\circ = \cos 45^\circ = 0.707 \), \( \sin 30^\circ = 0.5 \), \( \cos 30^\circ = 0.866 \))

  • A. 3 N s
  • B. 4.3 N s
  • C. 5 N s
  • D. 6 N s

Q2. A \( 1000 \, \text{kg} \) car on a \( 30^\circ \) banked road (\( \mu_s = 0.35 \)) turns at radius \( 50 \, \text{m} \) while decelerating at \( 2 \, \text{m/s}^2 \) tangentially. What is the maximum speed? (Take \( g = 10 \, \text{m/s}^2 \), \( \tan 30^\circ = 0.577 \))

  • A. 22 m/s
  • B. 24.1 m/s
  • C. 26 m/s
  • D. 28 m/s

Q3. A \( 3.5 \, \text{kg} \) block on a horizontal surface (\( \mu_k = 0.25 \)) is connected to a \( 5.5 \, \text{kg} \) mass over a pulley. A \( 8 \, \text{N} \) force aids the \( 3.5 \, \text{kg} \) block. What is the acceleration? (Take \( g = 10 \, \text{m/s}^2 \))

  • A. 5.5 m/s²
  • B. 6 m/s²
  • C. 6.5 m/s²
  • D. 7 m/s²

Q4. A \( 8 \, \text{kg} \) block on a \( 60^\circ \) incline (\( \mu_k = 0.25 \)) is connected to a \( 5 \, \text{kg} \) mass over a pulley. A \( 20 \, \text{N} \) force at \( 30^\circ \) to the incline opposes the \( 8 \, \text{kg} \) block. What is the acceleration? (Take \( g = 10 \, \text{m/s}^2 \), \( \sin 60^\circ = 0.866 \), \( \cos 60^\circ = 0.5 \), \( \sin 30^\circ = 0.5 \), \( \cos 30^\circ = 0.866 \))

  • A. 0.43 m/s²
  • B. 0.5 m/s²
  • C. 0.6 m/s²
  • D. 0.7 m/s²

Q5. A \( 7.6 \, \text{kg} \) block on a \( 60^\circ \) incline (\( \mu_k = 0.15 \)) is pulled upward by a \( 9.6 \, \text{kg} \) mass over a pulley. What is the acceleration? (Take \( g = 10 \, \text{m/s}^2 \), \( \sin 60^\circ = 0.866 \), \( \cos 60^\circ = 0.5 \))

  • A. 1.2 m/s²
  • B. 1.42 m/s²
  • C. 1.6 m/s²
  • D. 1.8 m/s²

+ 5 more questions in the actual test

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