A wheel is spinning about a fixed axis in a clockwise direction at 20.0 revolutions per minute. There is a spot of paint on the wheel located 20.0 cm from the axis of rotation
Disregarding the phase of the motion and with the origin located at the center of the wheel, which of the following is a description of the motion of the paint spot projected onto a given direction in the plane of motion?
A)
x(t) = (20.0 cm)cos[(2.09 s-1)t]
B)
x(t) = (40.0 cm)cos[(0.333 s-1)t]
C)
x(t) = (20.0 cm)cos[(0.333 s-1)t]
D)
x(t) = (20.0 cm)cos[(20.0 s-1)t]
E)
x(t) = (40.0 cm)cos[(126 s-1)t]
A
You might also like to view...
If you lived on the Moon, you'd see full Earth when we see new Moon
Indicate whether the statement is true or false
If the amount of polar ice decreases, what would happen, and why?
A) cooling, because melted ice cools things off B) warming, because more sunlight is reflected C) cooling, because more sunlight is reflected D) warming, because more sunlight is absorbed
A pendulum is made by letting a 2.0-kg object swing at the end of a string that has a length of 1.5 m. The maximum angle the string makes with the vertical as the pendulum swings is 30°. What is the speed of the object at the lowest point in its trajectory?
a. 2.0 m/s b. 2.2 m/s c. 2.5 m/s d. 2.7 m/s e. 3.1 m/s
An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 34.0 m/s. The observer is traveling at a velocity of 24.00 m/s toward the ambulance and the ambulance is traveling at a velocity of 24.00 m/s toward the observer. What is the frequency of the siren perceived by the observer?
A. 2,100 Hz B. 2,250 Hz C. 2,430 Hz D. 2,550 Hz E. 2,759 Hz