Ooo AT&T; 9:03 AM 66% session.masteringphysics.com C Problem 9.12 Mastering Phys

Question

Ooo AT&T; 9:03 AM 66% session.masteringphysics.com C Problem 9.12 Mastering Physics 7 of 33 Problem 9.12 In a Little League baseball game, the l45 g ball enters the strike zone with a speed of 12.0 m/s. The batter hits the ball, and it leaves his bat with a speed of 22.0 m/s in exactly the opposite direction. Part A What is the magnitude of the impulse delivered by the bat to the ball? Express your answer to three significant figures and include the appropriate units. JE Value Units ABC 123+ IE HA

Explanation / Answer

magintude of
impulse J = m(v2-v1) = 0.145(22+12) = 4.93 kg-m/s

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B)

Force = J/t = 4.93/1.5x10^-3 = 3286.667 N

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