A ball with a speed of 9   m   s - 1 collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30 ° with the original direction. If the ratio of velocities of the balls after the collision is x : y , then what is the value of x ?

Question

A ball with a speed of 9 &#160; m &#160; s - 1 collides with another identical ball at rest. After the collision, the direction of each ball makes an angle of 30 &#176; with the original direction. If the ratio of velocities of the balls after the collision is x : y , then what is the value of x ?

Aicharya · Accepted Answer

From conservation of momentum along y - axis. P &#8594; i y = P &#8594; f y 0 + 0 = m v 1 sin 30 &#176; j ^ + m v 2 sin 30 &#176; - j ^ m v 2 s i n 30 &#176; = m v 1 s i n 30 &#176; v 2 = v 1 or v 1 v 2 = 1

A ball with a speed of 9   m   s - 1 collides with another identical ball at rest. After the…

Solution

A ball with a speed of 9 &#160; m &#160; s - 1 collides with another identical ball at rest. After the…

Solution

A ball with a speed of 9 m s - 1 collides with another identical ball at rest. After the…