Pseudo Force & Non-Inertial Frames questions with solutions

Showing 1–10 of 46 questions

• MCQmediumNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A block of mass M is inside a box descending with acceleration a. The block exerts a force equal to one-fourth of its weight on the floor. Then a equals:

  Options

  • Option A

    g/4

  • Option B

    g/2

  • Option C

    3g/4

  • Option D

    g

  Check answerShow answer

  JEE Mains

  Open question & full solution →
• MCQmediumNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  The ratio of apparent weight of a man in a stationary lift to that in a lift accelerating downward with acceleration a is 3:2. Then a equals:

  Options

  • Option A

    3g/2

  • Option B

    g

  • Option C

    2g/3

  • Option D

    g/3

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQmediumNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A boy at the top berth of a train is dropping an apple into the open hand of his brother sitting vertically below. The apple will fall:

  Options

  • Option A

    Precisely on the hand of his brother

  • Option B

    Slightly away from the hand in the direction of motion of train

  • Option C

    Slightly away opposite to the train motion

  • Option D

    None of these

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQdifficultNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A smooth wedge of inclination 37° rises towards the right and is accelerated horizontally towards the right. A block remains at rest relative to the wedge. Take g = 10 m/s², sin37° = 3/5 and cos37° = 4/5. The acceleration of the wedge is:

  Options

  • Option A

    5 m/s²

  • Option B

    7.5 m/s²

  • Option C

    10 m/s²

  • Option D

    13.3 m/s²

  Check answerShow answer
  Open question & full solution →
• MCQdifficultNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A cuboidal car of height 3 m slips down a smooth incline. A bolt released from the center of its roof P falls relative to the car. The distance from the roof center where it hits the floor is:

  

  Options

  • Option A

    5 m

  • Option B

    4 m

  • Option C

    3 m

  • Option D

    None

  Check answerShow answer

  JEE MainsJEE Advanced

  Open question & full solution →
• MCQmediumNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  Mass M is placed on a smooth wedge on frictionless ground. To keep M stationary relative to the wedge, in which direction and with what acceleration must the wedge move?

  

  Options

  • Option A

    left, a=g tanθ

  • Option B

    right, a=g tanθ

  • Option C

    left, a=g sinθ

  • Option D

    left, a=g cosθ

  Check answerShow answer

  AIPMT 1998NEET

  Open question & full solution →
• MCQdifficultNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  An Atwood machine consists of masses 2m and m and is suspended inside a lift descending with acceleration a. As a → g, the tension in the string approaches:

  Options

  • Option A

    mg

  • Option B

    2mg/3

  • Option C

    2mg

  • Option D

    0

  Check answerShow answer
  Open question & full solution →
• MCQmediumNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A man in a lift holds a bucket of water with a small hole at the bottom. If the flow rate is R₀ in a stationary lift, Rᵤ when lift accelerates upward and Rdown when it accelerates downward with the same magnitude, then:

  Options

  • Option A

    R₀>Rᵤ>Rdown

  • Option B

    Rᵤ>R₀>Rdown

  • Option C

    Rdown>R₀>Rᵤ

  • Option D

    Rᵤ>Rdown>R₀

  Check answerShow answer

  JEE MainsNEET

  Open question & full solution →
• MCQdifficultNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A wedge of inclination θ rises towards the right and is forced to accelerate horizontally towards the right with acceleration a. A small block of mass m remains in contact with its smooth inclined surface. The normal reaction is:

  Options

  • Option A

    m(g cosθ - a sinθ)

  • Option B

    m(g cosθ + a sinθ)

  • Option C

    m(g sinθ + a cosθ)

  • Option D

    m√(g²+a²)

  Check answerShow answer
  Open question & full solution →
• MCQmediumNewtons law of motion and FrictionPseudo Force & Non-Inertial Frames

  A block of mass m rests on a smooth incline of angle θ on a wedge. The wedge accelerates horizontally rightward with acceleration a. What relation makes the block remain at rest relative to the wedge?

  

  Options

  • Option A

    a=g cosθ

  • Option B

    a=g/sinθ

  • Option C

    a=g/cosecθ

  • Option D

    a=g tanθ

  Check answerShow answer

  NEET 2018

  Open question & full solution →