An object of mass 1.2 kg is attached to a string of 0.83 m. When this object is rotated around in a horizontal circle with a constant speed, it completes 15 rotations in 9.6 seconds. Calculate a. period (T) of this motion
b. speed of the object
c. tension on the string

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n