In an elastic collision between disks A and B | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

Option $(A)$

$A$ comes to rest and $B$ moves with the velocity of $B.$

Option$(B):$

$A$ comes to rest and $B$ moves with the velocity of $B.$

Vedclass · Accepted Answer

All of the above

Vedclass · Answer

Option $(A)$

$A$ comes to rest and $B$ moves with the velocity of $B.$

Option$(B):$

$A$ comes to rest and $B$ moves with the velocity of $B.$

Therefore, velocity of $B$ relative to $A$ remains the same in magnitude but reverses in direction which follows from momentum conservation.

Option$(c):$  

$m v+0=m v^{\prime} \cos 45^{0}+m v^{\prime} \cos 45^{0}=2 m v^{\prime} \cos 45^{0}=\sqrt{2} m v^{\prime}$

$\Rightarrow v=\sqrt{2} v^{\prime}$ This is possible.

In an elastic collision between disks $A$ and $B$ of equal mass but unequal radii, $A$ moves along the $x$ -axis and $B$ is stationary before impact. Which of the following is possible after impact?

Similar Questions

Explain oblique collision.

A particle of mass $1\, kg$ moving with velocity $1\, m/s$, collides elastically with another particle of mass $m$. In the collision particle of mass $1\, kg$ loses $\frac{3}{4}$of its $K.E.$ The value of $m$ is :

A body of mass $2\, kg$ moving with a velocity of $6\, m/s$ strikes inelastically another body of same mass at rest. The amount of heat evolved during collision is ............... $\mathrm{J}$

Select the false statement

Two balls $A$ and $B$ having masses $1\, kg$ and $2\, kg$, moving with speeds $21\, m/s$ and $4\, m/s$ respectively in opposite direction, collide head on. After collision Amoves with a speed of $1\, m/s$ in the same direction, then the coefficient of restitution is