Embibe Experts Solutions for Chapter: Laws of Motion, Exercise 2: Level 2

If the tension in the cable of $1000 \mathrm{kg}$ elevator is $1000 \mathrm{kg}$ weight, the elevator

As shown to the right, two blocks with masses $m$ and $M(M>m)$ are pushed by a force $F$ in both Case $\mathrm{I}$ and Case $\mathrm{II}$. The surface on which blocks lie, is horizontal and frictionless. Let $R_I$ be the force that $m$ exerts on $M$ in case $\mathrm{I}$ and $R_{II}$ be the force that $m$ exerts on $M$ in

case $\mathrm{II}$. Which of the following statement is true?

A $2 \mathrm{kg}$ toy car can move along $x$axis. Graph shows resultant force $F_{{\mathrm{x}}^{\text{'}}}$ acting on the car which begins at rest at time $t=0$ The velocity of the particle at $t=10\mathrm{s}$ is:

A ship of mass $3\times {10}^7 \mathrm{kg}$ initially at rest is pulled by a force of $5\times {10}^4 \mathrm{N}$ through a distance of $3 \mathrm{m}$. Assuming the resistance due to water to be negligible, the speed of the ship is

The block $Q$ is pulled on a straight horizontal surface making an angle $\mathrm{\theta }$ with the horizontal. If $a$ is the acceleration of the block, $N$ the contact force by the surface, $T$ the pull of the string along with it and $M$ the mass of the block, then

A body of mass $10 \mathrm{kg}$ is placed in a lift moving upward with an acceleration of $2 {\mathrm{ms}}^{-2}.$ The apparent weight of body is $\left(g=9.8 {\mathrm{ms}}^{-2}\right)$

The force $F$ acting on a particle of mass $m$ is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to $8 \mathrm{s}$ is,

In the given diagram what is the minimum force $\text{'}F\text{'}$ required, so that block $\text{'}A\text{'}$ will slip on block $\text{'}B\text{'}$?