Question

need answer for part B please!

A tennis player swings her 1000 g racket with a speed of 12 m/s. She hits a 60 g tennis ball that was approaching her at a speed of 16 m/s. The ball rebounds at 36 m/s. Part A How fast is her racket moving immediately after the impact? You can ignore the interaction of the racket with her hand for the brief duration of the collision. Express your answer using two significant figures. v = 8.9 m/s Submit Previous Answers ✓ Correct Significant Figures Feedback: Your answer 8.88 m/s was either rounded differently or used a different number of significant figures than required for this part. Part B If the tennis ball and racket are in contact for 10 ms, what is the average force that the racket exerts on the ball? Express your answer using two significant figures.

Answer 1

Tcaeket cm)e 156D mass inittaD speaol Cu) - 13m/s mass of tennis baut cm)-6oa initia spced cu=16m/s finae spceel of ball C2)36 ms Conservation of momentum usona --MIVItm2 - 1A - 880/c teme (Ab Vo ms 17 - 3 change in momertum 0f bal is -3 60 K10(36t 16) 3 12 kgms 1-3 So AP 313N F = At Please route me deer Thenk you 4