Physics 195 Chapter 8 Exam Questions And
Answers Latest Update
in UCM ________, ___________, and _________________ are
constant -
correct answer ✅speed, angular velocity, magnitude of the net
force
what is the size of the friction force on the car? (formula) -
correct answer ✅f_r = mv^2/r
in UCM at constant speed, the net force points
__________________ -
correct answer ✅toward the center of the circle
a force that's always directed toward the same point is called
_________ -
correct answer ✅central force
a car turns a corner on a flat unbanked road. The force responsible
for the turn is _________ -
correct answer ✅the static friction force
what is the period of a satellite in a geosynchronous orbit? -
correct answer ✅24 hours
,Physics 195 Chapter 8 Exam Questions And
Answers Latest Update
an astronaut circling the earth in the international space station is
weightless because -
correct answer ✅the space station and the astronaut are in free
fall
a roller coaster doing a loop-the-loop is upside down at the highest
point of the loop. At this point, the normal force of the track on the
car points __________ -
correct answer ✅down
A roller coaster car doing a loop-the-loop will come off the track if
its speed at the highest point drops below a critical speed. The
condition that determines the critical speed is ________________ -
correct answer ✅vector n = 0 N at the highest point
a particle undergoing counterclockwise circular motion experiences
the net force shown in the figure. The particle is ___________ -
correct answer ✅slowing down along a circular path
A car travels at a steady 40.0 m/s around a horizontal curve of
radius 200 m. What is the minimum coefficient of static friction
, Physics 195 Chapter 8 Exam Questions And
Answers Latest Update
between the road and the car's tires that will allow the car to travel
at this speed without sliding? -
correct answer ✅0.816
A car enters a 300-m radius horizontal curve on a rainy day when
the coefficient of static friction between its tires and the road is
0.600. What is the maximum speed at which the car can travel
around this curve without sliding? -
correct answer ✅42.0 m/s
A 1000-kg car is slowly picking up speed as it goes around a
horizontal curve whose radius is 100 m. The coefficient of static
friction between the tires and the road is 0.350. At what speed will
the car begin to skid sideways? -
correct answer ✅18.5 m/s
A 600-kg car is going around a banked curve with a radius of 110 m
at a speed of 27.5 m/s. What is the appropriate banking angle so
that the car stays on its path without the assistance of friction? -
correct answer ✅35.0 degrees
A 600-kg car traveling at 30.0 m/s is going around a curve having a
radius of 120 m that is banked at an angle of 25.0°. The coefficient
Answers Latest Update
in UCM ________, ___________, and _________________ are
constant -
correct answer ✅speed, angular velocity, magnitude of the net
force
what is the size of the friction force on the car? (formula) -
correct answer ✅f_r = mv^2/r
in UCM at constant speed, the net force points
__________________ -
correct answer ✅toward the center of the circle
a force that's always directed toward the same point is called
_________ -
correct answer ✅central force
a car turns a corner on a flat unbanked road. The force responsible
for the turn is _________ -
correct answer ✅the static friction force
what is the period of a satellite in a geosynchronous orbit? -
correct answer ✅24 hours
,Physics 195 Chapter 8 Exam Questions And
Answers Latest Update
an astronaut circling the earth in the international space station is
weightless because -
correct answer ✅the space station and the astronaut are in free
fall
a roller coaster doing a loop-the-loop is upside down at the highest
point of the loop. At this point, the normal force of the track on the
car points __________ -
correct answer ✅down
A roller coaster car doing a loop-the-loop will come off the track if
its speed at the highest point drops below a critical speed. The
condition that determines the critical speed is ________________ -
correct answer ✅vector n = 0 N at the highest point
a particle undergoing counterclockwise circular motion experiences
the net force shown in the figure. The particle is ___________ -
correct answer ✅slowing down along a circular path
A car travels at a steady 40.0 m/s around a horizontal curve of
radius 200 m. What is the minimum coefficient of static friction
, Physics 195 Chapter 8 Exam Questions And
Answers Latest Update
between the road and the car's tires that will allow the car to travel
at this speed without sliding? -
correct answer ✅0.816
A car enters a 300-m radius horizontal curve on a rainy day when
the coefficient of static friction between its tires and the road is
0.600. What is the maximum speed at which the car can travel
around this curve without sliding? -
correct answer ✅42.0 m/s
A 1000-kg car is slowly picking up speed as it goes around a
horizontal curve whose radius is 100 m. The coefficient of static
friction between the tires and the road is 0.350. At what speed will
the car begin to skid sideways? -
correct answer ✅18.5 m/s
A 600-kg car is going around a banked curve with a radius of 110 m
at a speed of 27.5 m/s. What is the appropriate banking angle so
that the car stays on its path without the assistance of friction? -
correct answer ✅35.0 degrees
A 600-kg car traveling at 30.0 m/s is going around a curve having a
radius of 120 m that is banked at an angle of 25.0°. The coefficient
