r of mass m = 750 kg starts from rest at the top of a hill 30 m high, see Fig. 6.39. The roller-coaster travels a total distance of 250 m without leaving the track and reaches a vertical height of only 25m on the second hill before coming to a momentary stop. Find the

University Physics Volume 1
18th Edition
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Chapter8: Potential Energy And Conservation Of Energy
Section: Chapter Questions
Problem 70AP: A particle of mass 2.0 kg moves under the influence of the force F(x)=(5x2=7x)N . Suppose a...
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A roller-coaster car of mass m = 750 kg starts from rest at the top of a hill 30 m
high, see Fig. 6.39. The roller-coaster travels a total distance of 250 m without
leaving the track and reaches a vertical height of only 25m on the second hill
before coming to a momentary stop. Find the thermal energy produced during
the free motion and estimate the average frictional force on the car.

A roller-coaster car of mass m
= 750 kg starts from rest at the top of a hill 30 m
3.
high, see Fig. 6.39. The roller-coaster travels a total distance of 250 m without
leaving the track and reaches a vertical height of only 25 m on the second hill
before coming to a momentary stop. Find the thermal energy produced during
the free motion and estimate the average frictional force on the car.
Va=0
mg
B
YA = 30 m
0 = "2
Yn = 25 m ~
Transcribed Image Text:A roller-coaster car of mass m = 750 kg starts from rest at the top of a hill 30 m 3. high, see Fig. 6.39. The roller-coaster travels a total distance of 250 m without leaving the track and reaches a vertical height of only 25 m on the second hill before coming to a momentary stop. Find the thermal energy produced during the free motion and estimate the average frictional force on the car. Va=0 mg B YA = 30 m 0 = "2 Yn = 25 m ~
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