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Two balls, each of m ass 80 g, moving to...

Two balls, each of m ass 80 g, moving towards each other with a velocity 5 `msA^(1)`, collide and rebound with the sam e speed. What will be the im pulse o f force on each ball due to the oth er ? W hat is th e valu e of mom entum of each ball

Text Solution

Verified by Experts

Soppose velocity of one ball in positive X- direction is `vec( v)`
Before collision its momentum `vec(p )_(1) = m vec( v)_(1)`
Change in momentum `Delta vec( p) = vec( p)_(2) - vec( p)_(1)`
`Delta vec( p) =- 2 mv hat(j )`
`m= 80 g=80 xx 10^(-3) kg`
`|Delta vec( p) | = 0.8 N s v = 5 ms^(-1)`
But impulse of force `vec(F ) Delta t = vec( p)`
Impulse of force is alos 0.8 kg `ms^(-1)`
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