2 and 3 help 017 BIOL 1 04-0 2. polnts SerCP8 6.P.009.ssm. My Notes Aak Your lle

Question

2 and 3 help

017 BIOL 1 04-0 2. polnts SerCP8 6.P.009.ssm. My Notes Aak Your llege extbo A 0.291-kg volleyball approaches a player horizontally with a speed of 12.9 m/s. The player strikes the ball with her fist and causes the bal to move in the opposite direction with a speed of 22.0 m/s. (a) What impulse is delivered to the ball by the player? kg·m/s (b) If the player's fist is in contact with the ball for 0.060 0 s, find the magnitude of the average force exerted on the players fist. ys Need Help? Read ItTaik to a Tuter 3. O-1 points SercP8 6.P021.soln Notes Ask Your To High-speed stroboscopic photographs show that the head of a 230 g golf club Is traveling at 49 m/s just before it strikes a 46 g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 36 m/s. Find the speed of the golf ball just after impact. m/s Need Help? Read It Talk to My Notes Ask Your Teacher 4. -/6 points SerCP8 6.P.028. Two ice skaters are holding hands at the center of a frozen pond when an argument ensues. Skater A shoves skater B along a horizontal

Explanation / Answer

2. (A) impulse = change in momentum

= m (vf - vi)

= 0.291 (22 - (-12.9))

= 10.2 kg m/s

(B) Impulse = F delta(t)

10.2 = F (0.060)

F = 169.3 N

  

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