Home
Class 11
PHYSICS
A spool is pulled by a force in vertical...


A spool is pulled by a force in vertical direction as shown in figure . What is the direction of friction in this case? The spool does not loose contact with the ground.

Text Solution

Verified by Experts


`tau_(F)` about `O` is anticlockwise so, it will roll leftwards F is vertical so horizontal force is vertical. So, horizontal force is provided by friction (to give it linear acceleration a). So, friction acts leftwards.
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MECHANICS

    DC PANDEY|Exercise Exercise 12.11|2 Videos

  • ROTATIONAL MECHANICS

    DC PANDEY|Exercise Assertion And Reason|11 Videos

  • ROTATIONAL MECHANICS

    DC PANDEY|Exercise Exercise 12.9|2 Videos

  • ROTATION

    DC PANDEY|Exercise (C) Chapter Exercises|39 Videos

  • ROTATIONAL MOTION

    DC PANDEY|Exercise Integer Type Questions|17 Videos

Similar Questions

Explore conceptually related problems

What is the direction of force of friction acting on a moving object ?

Direction Of Frictional Force

As shown in the figure , the friction force acting on the block is

Two block a and B having masses m_(1)=1 kg, m_(2)=4 kg are arranged as shown in the figure. The pulleys P and Q are light, and frictionless. All the blocks are resting on. a horizontal floor and the pulleys ate held such that strings remains just taut. At.moment t=0 a force F=30t (N) starts acting on thei ipulley p along . vertically upward direction as shown in the pulley P along vertically upward direction as shown in the figure. Calculate. (i) the time when the blocks A and B loose contact with ground. (ii) the. velocity of A when B looses contact with ground. (iii) the height raised. by A upto this instant. (iv) the work done by the force F upto this instan.

In which direction the force of friction acts? What if object does not move?

For the circuit shown in figure the direction and magnitude of the force on PQR is :

If in pervious problem, an additional force F' = 100N is applied in vertical direction as shown in figure The friction force acting on the block is