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A puck on a frictionless air hockey table has a mass of 5.0 kg and is attached to a cord passing through a hole in the s
Posted: Mon May 16, 2022 3:32 pm
by answerhappygod
- A Puck On A Frictionless Air Hockey Table Has A Mass Of 5 0 Kg And Is Attached To A Cord Passing Through A Hole In The S 1 (31.39 KiB) Viewed 32 times
A puck on a frictionless air hockey table has a mass of 5.0 kg and is attached to a cord passing through a hole in the surface as in the figure. The puck is revolving at a distance 2.0 m from the hole with a velocity of 6.0 m/s. a) What is the period of orbit? What is the tension in the string and what is the angular momentum of the puck (in kg-m/s). What is the kinetic energy of the mass? b) If the string is shortened by a factor of 4, what is the new velocity. (Indicate what principle of physics you have used. c) What is the new period of orbit? What is the new tension in the string. What is the new kinetic energy of the mass? d) How many times greater is the new kinetic energy compared to the old kinetic energy? Where did the extra energy come from?