A box ' A ' is lying on horizontal floor of compartment of a train running along horizontal

English

Gujarati

Hindi

4-2.Friction

medium

A box ' $A$ ' is lying on the horizontal floor of the compartment of a train running along horizontal rails from left to right. At time ' $t$ ', it decelerates. Then the reaction $R$ by the floor on the box is given best by

A

B

C

D

Solution

Floor will provide the normal force and friction force the net reaction is provide by the floor is $R$.

Standard 11

Physics

Share

Similar Questions

A bag is gently dropped on a conveyor belt moving at a speed of $2\,m / s$. The coefficient of friction between the conveyor belt and bag is $0.4$ Initially, the bag slips on the belt before it stops due to friction. The distance travelled by the bag on the belt during slipping motion is $…..m$ [Take $g=10\,m / s ^{-2}$ ]

medium

(JEE MAIN-2022)

A $1\,kg$ block is being pushed against a wall by a force $F = 75\,N$ as shown in the Figure. The coefficient of friction is $0.25.$ The magnitude of acceleration of the block is …….. $m/s^2$

medium

A child weighing $25 \,kg$ slides down a rope hanging from a branch of a tall tree. If the force of friction acting against him is $200 \,N$, the acceleration of child is ……….. $m / s^2$ $\left(g=10 \,m / s ^2\right)$

easy

A body of $10\, kg$ is acted by a force of $129.4\, N$ if $g = 9.8\,m/{\sec ^2}$. The acceleration of the block is $10\,m/{s^2}$. What is the coefficient of kinetic friction

medium

The retarding acceleration of $7.35\, ms^{-2}$ due to frictional force stops the car of mass $400\, kg$ travelling on a road. The coefficient of friction between the tyre of the car and the road is

medium