Embibe Experts Solutions for Exercise 3: Assignment

A particle of mass $m$ moving towards west with speed $V$ collides with another particle of mass $m$ moving towards south. If two particles stick to each other, the speed of the new particle of mass $2 m$ will be

A body of mass $10 \mathrm{kg}$ moving with speed of $3 \mathrm{m}{ \mathrm{s}}^{-1}$ collides with another stationary body of mass $5 \mathrm{kg}.$ As a result, the two bodies stick together. The $KE$ of composite mass will be

Select the false statement

A bullet of mass $m$ moving with a velocity $u$ strikes a block of mass $M$ at rest and gets embedded in the block. The loss of kinetic energy in the impact is

A bullet of mass $m$ moving with velocity $v$ strikes a suspended wooden block of mass $M.$ If the block rises to height $h,$ the initial velocity of the bullet will be

A bullet weighing $10 \mathrm{g}$ and moving with a velocity $300 \mathrm{m} {\mathrm{s}}^{-1}$ strikes a $5 \mathrm{kg}$ block of ice and drop dead. The ice block is kept on smooth surface. The speed of the block after the collision is

A particle of mass $m$ moving eastward with a speed $v$ collides with another particle of the same mass moving northwards with same speed $v.$ The two particles coalesce on collision. The new particle of mass $2 m$ will move with velocity

Two perfectly elastic particles $A$ and $B$ of equal masses travelling along the line joining them with velocity $15 \mathrm{m} {\mathrm{s}}^{-1}$ and $10 \mathrm{m} {\mathrm{s}}^{-1}$ respectively, collide. Their velocities after the elastic collision will be (in $\mathrm{m} {\mathrm{s}}^{-1}$ ), respectively