Sun marks People Window Help C A Bat Strikes A 0.145-kg Base x 14759300&OpenVell

Question

Sun marks People Window Help C A Bat Strikes A 0.145-kg Base x 14759300&OpenVellumHMAC; fe2et 61445e1#10001 PHYS 2100 Course Home Exercise 8.10 Part A A bat strikes a 0.145-kg basebali Just before impact, the bal is traveling horizontsally to the right at 330 m/s; when it leaves the bat, the ball is raveling to the left at an angle of 330 above horlizontal wilth a speed of 550 m/s. The bal and bat are in contact for 175 Find the horinontal and vertical components of the average force on the ball Let +a be to the right and +y be upwand Express your answers using three significant figures separated by a comma. Next > Provide Feedback MacBook 20

Explanation / Answer

mass = m = 0.145 kg

horizontally right at 33.0 m/s

angle 33o

above horizontal speed 55 m/s

and time for contact is 1.75 ms

V1 = initial velocity horizontal

V2 = final velocity horizontal

V1 - at = - V2

( V1 + V2 ) / t = a

a = ( 33 + 55 X cos33 ) / 0.00175

a = 45215.36 m/s2

using Fx = m a

Fx = 0.145 X 45215.36

Fx = 6556.227 N to left side

and

V1 = 0

V2 = 55 sin33 = 29.955 m/s

usnig V = a t

a = V/t

Fy = m V / t

Fy = 0.145 X 29.955 / 0.00175

Fy = 2481.99 N in an upward direction

Fx , Fy = 6556.227 N to left side , 2481.99 N in an upward direction

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