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
Similar Questions
Consider a car moving along a straight horizontal road with a speed of $72\, km/h$. If the coefficient of kinetic friction between the tyres and the road is $0.5,$ the shortest distance in which the car can be stopped is ........ $m$ .$[g = 10\,m{s^{ - 2}}]$
Consider a car moving along a straight horizontal road with a speed of $72\, km/h$. If the coefficient of kinetic friction between the tyres and the road is $0.5,$ the shortest distance in which the car can be stopped is ........ $m$ .$[g = 10\,m{s^{ - 2}}]$
- [AIPMT 1992]
$STATEMENT-1$ It is easier to pull a heavy object than to push it on a level ground. and
$STATEMENT-2$ The magnitude of frictional force depends on the nature of the two surfaces in contact.
$STATEMENT-1$ It is easier to pull a heavy object than to push it on a level ground. and
$STATEMENT-2$ The magnitude of frictional force depends on the nature of the two surfaces in contact.
- [IIT 2008]
A stationary body of mass $m$ is slowly lowered onto a massive plateform of mass $M(M \gg m)$ moving at a speed $V_p=4\,m / s$ as shown in fig. How far will the body slide along the platform $(\mu=0.2$ and $g =10\,m /\left.s ^2\right)$ ?
A car accelerates on a horizontal road due to force exerted by
A car accelerates on a horizontal road due to force exerted by
A block placed on a rough horizontal surface is pulled by a horizontal force $F$. Let $f$ be the force applied by the rough surface on the block. Plot a graph of $f$ versus $F$.
A block placed on a rough horizontal surface is pulled by a horizontal force $F$. Let $f$ be the force applied by the rough surface on the block. Plot a graph of $f$ versus $F$.