Answered: Descending from rest at the last peak…

Name: Descending from rest at the last peak (height 20 m above the ground le
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Description: Descending from rest at the last peak (height 20 m above the ground level) on a roller-coaster track, a car, of mass 750 kg, hits at the end of a horizontal stretch of shallow water, which exerts the average braking force of 920 N. How far does the c

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 49P: A baseball catcher is performing a stunt for a television commercial. He will catch a baseball (mass...

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Descending from rest at the last peak (height 20 m above the ground level) on a roller-coaster track, a car, of mass 750 kg, hits at the end of a horizontal stretch of shallow water, which exerts the average braking force of 920 N. How far does the car splash through the water before it stops?

a. 210 m

b. 160 m

c. 130 m

d. 90 m

e. 50 m

Expert Solution

Step 1

Solution:

Given:

m = mass of car = 750 kg

g = gravitational acceleration = 9.81 m/s²

h = height of last peak = 20 m

F = braking force in water = 920 N

s = distance car splashes through water before it stops = ?

Choose the correct option:

a. 210 m

b. 160 m

c. 130 m

d. 90 m

e. 50 m

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