×
Log in to StudySoup
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 7 - Problem 20pe
Join StudySoup for FREE
Get Full Access to Physics: Principles With Applications - 6 Edition - Chapter 7 - Problem 20pe

Already have an account? Login here
×
Reset your password

# A 100-g toy car is propelled by a compressed spring that

ISBN: 9780130606204 3

## Solution for problem 20PE 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 1 258 Reviews
24
1
Problem 20PE

A 100-g toy car is propelled by a compressed spring that starts it moving. The car follows the curved track in Figure 7.39. Show that the final speed of the toy car is 0.687 m/s if its initial speed is 2.00 m/s and it coasts up the frictionless slope, gaining 0.180 m in altitude.

Step-by-Step Solution:

Step-by-step solution Step 1 of 1 The potential energy gained by the toy car at the height is, The change in the kinetic energy of the toy car is According to the work energy theorem Or Therefore, Or Substitute for , for , and for in the above equation. Hence, the final speed of the car is .

Step 2 of 1

#### Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

A 100-g toy car is propelled by a compressed spring that