mg FN In the example shown, if the track radius is 7 meters, what is the velocity of the mass? 30° The velocity is zero (since the force diagram is closed) Need to know the mass of the car to obtain a numerical answer 629 m/s O 3956 m/s O 251 m/s O NOTA

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 34P: A basketball player jumps straight up for a ball. To do this, he lowers his body 0.300 m and then...
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answer Q 5

QUESTION 5
mv²
mg
FN
30
In the example shown, if the track radius is 7 meters, what is the velocity of the mass?
300
O The velocity is zero (since the force diagram is closed)
O Need to know the masss of the car to obtain a numerical answer
O 6.29 m/s
O 3956 m/s
O 2.51 m/s
NOTA
QUESTION 6
Suppose the car was on the same frictionless track as in Q5, but the bank angle changed from 30 degrees to o degrees (i.e., the track is entirely horizontal. In that case, which statement is true?
o the (stable and constant) velocity would increase relative to the previous question.
o the normal force would increase
o the gravitational force would increase
the centripetal force would increase
the car could not turn without slipping
O NOTA
Transcribed Image Text:QUESTION 5 mv² mg FN 30 In the example shown, if the track radius is 7 meters, what is the velocity of the mass? 300 O The velocity is zero (since the force diagram is closed) O Need to know the masss of the car to obtain a numerical answer O 6.29 m/s O 3956 m/s O 2.51 m/s NOTA QUESTION 6 Suppose the car was on the same frictionless track as in Q5, but the bank angle changed from 30 degrees to o degrees (i.e., the track is entirely horizontal. In that case, which statement is true? o the (stable and constant) velocity would increase relative to the previous question. o the normal force would increase o the gravitational force would increase the centripetal force would increase the car could not turn without slipping O NOTA
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