×
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 7 - Problem 3p
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 7 - Problem 3p

×

# A 0.145-kg baseball pitched at 39.0 m/s is hit on a ISBN: 9780130606204 3

## Solution for problem 3P Chapter 7

Physics: Principles with Applications | 6th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants Physics: Principles with Applications | 6th Edition

4 5 1 351 Reviews
31
2
Problem 3P

Problem 3P

A 0.145-kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s. If the contact time between bat and ball is 3.00 × 10−3 s, calculate the average force between the ball and bat during contact

.

Step-by-Step Solution:

Solution 3PIntroduction:We know that, Angular Acceleration = Change in angular veloc…..(1) TimeNumber of revolutions can be calculated from angular displacement.Step 1:Initial angular velocity, = 0 rad/s iFinal angular velocity, = 3f00 rpm = 3000 rps ( since 1 min = 60 s) 60 = 50 rpsNow, 1 revolution = 2 radSo, 50 revolutions = 50×2 rad50 revolutions = 100 radTherefore, = 1f0 rad/sGiven that, time = 2.0 s Therefore, the crankshaft’s angular acceleration = Timei (from equation (1)) = (1000)rad/s/(2.0 s) 2 = 50 rad/s 2 = 50×3.14 rad/s\n = 157 rad/s …..(2)

Step 2 of 2

##### ISBN: 9780130606204

Unlock Textbook Solution