Ball 1, with a mass of 110 g and traveling at 12 m / s , collides head on with b

Question

Ball 1, with a mass of 110g and traveling at 12m/s, collides head on with ball 2, which has a mass of320g and is initially at rest. Part A What is the final velocity of the ball 1 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part B What is the final velocity of the ball 2 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)2 =   m/s   SubmitGive Up Part C What is the final velocity of the ball 1 if the collision is perfectly inelastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part D What is the final velocity of the ball 2 if the collision is perfectly inelastic? Ball 1, with a mass of 110g and traveling at 12m/s, collides head on with ball 2, which has a mass of320g and is initially at rest. Part A What is the final velocity of the ball 1 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part B What is the final velocity of the ball 2 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)2 =   m/s   SubmitGive Up Part C What is the final velocity of the ball 1 if the collision is perfectly inelastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part D What is the final velocity of the ball 2 if the collision is perfectly inelastic? Ball 1, with a mass of 110g and traveling at 12m/s, collides head on with ball 2, which has a mass of320g and is initially at rest. Ball 1, with a mass of 110g and traveling at 12m/s, collides head on with ball 2, which has a mass of320g and is initially at rest. Ball 1, with a mass of 110g and traveling at 12m/s, collides head on with ball 2, which has a mass of320g and is initially at rest. Part A What is the final velocity of the ball 1 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part B What is the final velocity of the ball 2 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)2 =   m/s   SubmitGive Up Part C What is the final velocity of the ball 1 if the collision is perfectly inelastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part D What is the final velocity of the ball 2 if the collision is perfectly inelastic? Part A What is the final velocity of the ball 1 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part A What is the final velocity of the ball 1 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up (vfx)1 =   m/s   (vfx)1 =   m/s   SubmitGive Up Part B What is the final velocity of the ball 2 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)2 =   m/s   SubmitGive Up Part B What is the final velocity of the ball 2 if the collision is perfectly elastic? Express your answer using two significant figures. (vfx)2 =   m/s   SubmitGive Up (vfx)2 =   m/s   (vfx)2 =   m/s   SubmitGive Up Part C What is the final velocity of the ball 1 if the collision is perfectly inelastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up Part C What is the final velocity of the ball 1 if the collision is perfectly inelastic? Express your answer using two significant figures. (vfx)1 =   m/s   SubmitGive Up (vfx)1 =   m/s   (vfx)1 =   m/s   SubmitGive Up Part D What is the final velocity of the ball 2 if the collision is perfectly inelastic? Part D What is the final velocity of the ball 2 if the collision is perfectly inelastic? (vfx)1 =   m/s  

Explanation / Answer

here m1 = 110g
u1 = 12 m/sec...

m2 = 320g

u2=0 m/sec...

Part A) v1 = (m1-m2)*u1/(m1+m2) = ((110-320)*12)/(110+320) = -5.86 m/sec

part B) v2 = 2*m1*u1/(m1+m2) = (2*110*12)/(110+320) = 6.13 m/sec...

part C) in perfectly inelastic collision both ball1 and ball2 travels combindly wi the the same speed...

m1*u1 = (m1+m2)*V..
V = m1*u1/(m1+m2) = (110*12)/(110+320) = 3.069 m/sec

Part D) V = 3.069 m/sec

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