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
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
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter5: The Laws Of Motion
Section: Chapter Questions
Problem 5.8P: (a) A cat with a mass of 850 kg in moving to the right with a constant speed of 1.44 m/s. What is...
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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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