FrictionHard
Question
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 resultant contact force R by the floor on the box is given best by :
Options
A.
B.
C.
D.
Solution
Acceleration of train will be from right to left.
⇒ Pseudo force will act on the box from left to right therefore friction will act from right to left.
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