In the figure below, a cord runs around two massless, frictionless pulleys. A canister with mass m = 15 kg hangs from one pulley, and you exert a force F on the free end of the cord. (Hint: When a cord loops around a pulley as shown, it pulls on the pulley with a net force that is twice the tension in the cord.) m (a) What must be the magnitude of F if you are to lift the canister at a constant speed? N (b) To lift the canister by 2.5 cm, how far must you pull the free end of the cord? cm

In the figure below, a cord runs around two massless, frictionless pulleys. A canister with mass m = 15 kg hangs from one pulley, and you exert a force F on the free end of the cord. (Hint: When a cord loops around a pulley as shown, it pulls on the pulley with a net force that is twice the tension in the cord.) m (a) What must be the magnitude of F if you are to lift the canister at a constant speed? N (b) To lift the canister by 2.5 cm, how far must you pull the free end of the cord? cm

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 40P: A sledge is being pulled by two horses on a flat terrain. The net force on the sledge can be...

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