When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts
In the backward direction on the front wheel and in the forward direction on the rear wheel
In the forward direction on the front wheel and in the backward direction on the rear wheel
In the backward direction on both front and the rear wheels
Both $(a)$ and $(c)$
A force acts on a block as shown in figure. Find time when block loses contact with surface.
Imagine the situation in which the given arrangement is placed inside a trolley that can move only in the horizontal direction, as shown in figure. If the trolley is accelerated horizontally along the positive $x$ -axis with $a_0$, then Identify the correct statement $(s)$ related to the tension $T$ in the string
A heavy body of mass $25\, kg$ is to be dragged along a horizontal plane $\left( {\mu = \frac{1}{{\sqrt 3 }}} \right).$ The least force required is ........ $kgf$
A box is lying on an inclined plane what is the coefficient of static friction if the box starts sliding when an angle of inclination is $60^o $
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 ........... $\,ms ^{-1}$