Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Laws of Motion question

2022 · 28 Jun · Shift 2 · Q52
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Laws of Motion
  5. /2022 · 28 Jun · Shift 2 · Q52

Laws of Motion question

2022 · 28 Jun · Shift 2 · Q52

JEE MainPhysicsLaws of MotionMCQ+4 / −1
A block of mass 2 kg moving on a horizontal surface with speed of 4 ms −-− 1 enters a rough surface ranging from x = 0.5 m to x = 1.5 m. The retarding force in this range of rough surface is related to distance by F = −-− kx where k = 12 Nm −-− 1. The speed of the block as it just crosses the rough surface will be :
  1. A
    zero
  2. B
    1.5 ms −-− 1
  3. C
    2.0 ms −-− 1
  4. D
    2.5 ms −-− 1
PreviousNext

More from Laws of Motion

  • Two bodies of masses m1​=5 kg and m2​=3 kg are connected by a light string going over a smooth light pulley on a smooth inclined plane as shown in the figure. The system is at rest. The force exerted by the… Includes diagram2022 · MCQ
  • A block of mass 40 kg slides over a surface, when a mass of 4 kg is suspended through an inextensible massless string passing over frictionless pulley as shown below. The coefficient of kinetic friction between the surface and block is… Includes diagram2022 · MCQ
  • A block of mass M placed inside a box descends vertically with acceleration 'a'. The block exerts a force equal to one-fourth of its weight on the floor of the box. The value of 'a' will be2022 · MCQ
  • A 2 kg block is pushed against a vertical wall by applying a horizontal force of 50 N. The coefficient of static friction between the block and the wall is 0.5. A force F is also applied on the block vertically upward (as shown in figure).… Includes diagram2022 · MCQ
  • A block of mass m slides on the wooden wedge, which in turn slides backward on the horizontal surface. The acceleration of the block with respect to the wedge is : Given m = 8 kg, M = 16 kg Assume all the surfaces shown in the figure to be… Includes diagram2021 · MCQ
  • An object of mass 'm' is being moved with a constant velocity under the action of an applied force of 2N along a frictionless surface with following surface profile. The correct applied force vs distance graph will be : Includes diagram2021 · MCQ
  • When a body slides down from rest along a smooth inclined plane making an angle of 30 ∘ with the horizontal, it takes time T. When the same body slides down from the rest along a rough inclined plane making the same angle and…2021 · Numerical
  • A block of mass m slides along a floor while a force of magnitude F is applied to it at an angle θ as shown in figure. The coefficient of kinetic friction is μ k. then, the block's acceleration 'a' is given by : (g is… Includes diagram2021 · MCQ