A tire with a diameter of 60 centimeters turns at a
rate of 100rpm. What is the linear speed of the
car?
60cm
A 180 gram rubber stopper is tied to a string and
swung in a vertical circle of 1.2 meters. What is the
minimum velocity the mass can have and still
successfully complete the circle. What would the
tension in the string be if the stopper had the same
velocity at the bottom of the circle?
The following system is in equilibrium (balanced).
What is the unknown mass?
8m
5kg
2.5m
8kg
1.5m
?
A car rounds a circular curve of radius 40 meters.
The coefficient of friction between the road and the
tires is 0.8. What is the maximum speed the car
can have and still successfully negotiate the
curve?
A 500kg satellite has an orbital radius of 1.5 x 107
meters. Calculate the linear velocity and the period
of the satellite.
Mass of the earth = 6.0 x 1024 kg
r = 1.5 x 107 m