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NEET UG Laws of Motion — practice questions — page 2

Explore 117 free Laws of Motion questions in NEET UG Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Laws of Motion questions and exercises with answers

Showing questions 31–60 of 117.

As per your syllabus, the maximum STATIC friction force on a block on a horizontal surface obeys which inequality?Read the answer and worked solution →As per your syllabus, KINETIC (sliding) friction is approximately given by which relation?Read the answer and worked solution →As per your syllabus, the coefficients of static and kinetic friction satisfy which order?Read the answer and worked solution →As per your syllabus, the MAXIMUM acceleration of a train such that a box on its floor (μ_s = 0.15) remains stationary is which?Read the answer and worked solution →As per your syllabus, if a mass just starts to slide at angle θ = 15°, the coefficient of static friction is which?Read the answer and worked solution →As per your syllabus, among rolling, sliding (kinetic), and static friction, which is typically LOWEST?Read the answer and worked solution →As per your syllabus, eqn 4.16, the CENTRIPETAL force needed for a body of mass m moving at speed v in a circle of radius R is which?Read the answer and worked solution →As per your syllabus, eqn 4.18, the maximum speed of a car on a LEVEL circular road of radius R is which?Read the answer and worked solution →As per your syllabus, eqn 4.22, the OPTIMUM speed (no friction needed) on a banked road of angle θ is which?Read the answer and worked solution →As per your syllabus, a cyclist taking a R=3 m turn at 18 km/h (μ_s = 0.1) is in which condition?Read the answer and worked solution →As per your syllabus, a R=300 m banked-at-15° racetrack with μ = 0.2 has optimum speed approximately which value?Read the answer and worked solution →NEET · Physics · Laws of Motion · Newton's Three LawsRead the answer and worked solution →NEET · Physics · Laws of Motion · Conservative or Non-conservative ForceRead the answer and worked solution →NEET · Physics · Laws of Motion · Free-body IdentificationRead the answer and worked solution →NEET · Physics · Laws of Motion · Friction TypeRead the answer and worked solution →NEET · Physics · Laws of Motion · Tap Action-Reaction PairsRead the answer and worked solution →NEET · Physics · Laws of Motion · F = ma — Gap FillRead the answer and worked solution →NEET · Physics · Laws of Motion · Term — TypingRead the answer and worked solution →NEET · Physics · Laws of Motion · Banking of Roads — Gap FillRead the answer and worked solution →NEET · Physics · Laws of Motion · Momentum ConceptRead the answer and worked solution →NEET · Physics · Laws of Motion · Inertial or Non-inertial FrameRead the answer and worked solution →NEET · Physics · Laws of Motion · Tap Vector QuantitiesRead the answer and worked solution →NEET · Physics · Laws of Motion · Newton's 2nd Law — PairRead the answer and worked solution →NEET · Physics · Laws of Motion · Tap Concepts That Need a FrameRead the answer and worked solution →NEET · Physics · Laws of Motion · Free-body Diagram — SortRead the answer and worked solution →NEET · Physics · Static or Kinetic FrictionRead the answer and worked solution →NEET · Physics · True or False — Motion & ForceRead the answer and worked solution →According to Galileo's law of inertia, an object moving on a frictionless horizontal plane will:Read the answer and worked solution →Newton's first law of motion is essentially a statement of:Read the answer and worked solution →The SI unit of force, the newton, is defined as the force that:Read the answer and worked solution →

Worked practice questions

As per your syllabus, the maximum STATIC friction force on a block on a horizontal surface obeys which inequality?

  1. f_s = μ_k N
  2. f_s = μ_s g
  3. f_s ≤ μ_s N
  4. f_s > μ_s N
Show answer and solution

Correct answer: C. f_s ≤ μ_s N

Your syllabus: static friction adjusts up to a maximum (f_s)_max = μ_s N. Below applied force F, f_s = F.

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As per your syllabus, KINETIC (sliding) friction is approximately given by which relation?

  1. f_k = μ_k N
  2. f_k = 0 always
  3. f_k = μ_s mg
  4. f_k ≥ μ_s N
Show answer and solution

Correct answer: A. f_k = μ_k N

Your syllabus: f_k = μ_k N. Independent of contact area, nearly independent of velocity. Lower than max static.

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As per your syllabus, the coefficients of static and kinetic friction satisfy which order?

  1. μ_s = μ_k
  2. μ_k > μ_s
  3. μ_s = 0 always
  4. μ_s > μ_k
Show answer and solution

Correct answer: D. μ_s > μ_k

Your syllabus: experimentally μ_k < μ_s. That is why a force just sufficient to set a body moving keeps it moving with acceleration.

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