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Jamal is at the state fair playing some of the games. At one booth, he throws a 0.50-kg ball forward with a velocity of 20.0 m/s in order to hit a 0.20-kg bottle sitting on a shelf, and when he makes contact the bottle goes flying forward at 25.0 m/s. What is the velocity of the ball after it hits the bottle?

Respuesta :

Answer:

Speed of the ball after it strike with bottle is 10 m/s

Explanation:

As we know that there is no external force on the system of bottle + ball

So we can use momentum conservation for this system

So we will have

[tex]mv = mv_1 + Mv_2[/tex]

so we will have

[tex]0.50(20) = 0.50 v_1 + 0.20 (25)[/tex]

[tex]10 = 0.50 v_1 + 5[/tex]

so we have

[tex]5 = 0.50 v_1[/tex]

[tex]v_1 = 10 m/s[/tex]