List of top Physics Questions on laws of motion asked in BCECE

If two molecules of $A$ and $B$ having mass $100 \,kg$ and $64\, kg$ and rate of diffusion of $A$ is $12\times 10^{-3},$ then what will be the rate of diffusion of $B$?

If the coefficient of static friction between the tyres and road is $0.5$, what is the shortest distance in which an automobile can be stopped when travelling at $72\,km/h$?

In the given figure the pulley is assumed massless and frictionless. If the friction force on the object of mass m is $f$ , then its acceleration in terms of the force $F$ will be equal to:

In the first second of its flight, rocket ejects 1/60 of its mass with a velocity of $2400\,\,m{{s}^{-1}}$ . The acceleration of the rocket is:

A ball of mass m moves with speed $v$ and it strikes normally with a wall and reflected back normally. If its time of contact with wall is $t$, then find force exerted by ball on the wall.

A body is moving along a rough horizontal surface with an initial velocity $6 \,m/s$. If the body comes to rest after travelling a distance $9 \,m$, then the coefficient of sliding friction will be: