Answered: The following two questions relate to a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The following two questions relate to a baseball being hit.
Just before the ball (of mass 0.4kg) contacts the bat, it is travelling in the negative x
direction with a speed of 20m/s. Immediately after the hit, the ball moves away from the
bat in the positive x direction with a speed of 30 m/s. The bat is in contact with the ball for
10 milli-seconds.

23. What is the magnitude of the average force on the ball in the x direction, while it is in contact
with the bat?
A) 400 N
B) 1200 N
C) 1600 N
D) 2000 N
E) 100,000 N

24. While in contact with the bat, there is an instant when the ball is stationary. At that instant,
describe the acceleration of the ball in the x direction:
A) In the positive x direction and non-zero
B) In the negative x direction and non-zero
C) Zero

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