Assignment:
Question 1. A group of physics students construct a device to launch water balloons. They launch a water balloon on a level football field, with an initial velocity of 8.0 m/s at an angle 38 degree above the horizontal.
a. Find the vertical component of the initial velocity.
b. Find the horizontal component of the initial velocity.
Question 2. Suppose a nickel (mass = 5.0 grams) is sitting on a turntable, 15.0 c, from the center. The turn-table is turning at 33-1/3 revolutions per minute.
a. What is the nickel's velocity in m/s
b. Determine the centripetal force on the nickel.
c. Draw a free-body diagram of the nickel. Find the minimum value that the coefficient of static friction can be, in order that the nickel not start sliding.