An ice puck of mass m revolves on an icy surface in a circle at speed v at the end of a horizontal string of length l. the tension in the string is t. what is the mass of the puck if the length of the string is 2 m, the string tension is 10 n, and the tangential speed of the puck is 2 m/s.

Explanation:

According to the Newton's second law, in this case, the tension is equal to the mass multiplied by the centripetal acceleration, since is a circular motion.

The centripetal acceleration is given by:

Here r is the radius of the circular motion, in this case is equal to the length of the string. Replacing and solving for m:

a. vertically

explanation:

i tried it and took the test

if im wrong then we have different tests