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6. system of particles and rotational motion — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysics6. system of particles and rotational motion1 Mark
MCQ
Three solid spheres are made to move on a rough horizontal surface. Sphere $P$ is given a spin and released. Sphere $Q$ is given a forward linear velocity. Sphere $R$ is given linear and rotational motions as shown in the figure. Directions of the friction force on spheres $P, Q, R$ are respectively
  • A
    Right, Left, Right
  • B
    Left, Right, Right
  • C
    Left, Right, Left
  • ✓
    Right, Left, Left
✓

Answer

Correct option: D.
Right, Left, Left
d
Frictional force act in opposite direction to tendency of motion of contact point.

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