February 20, 2017

Homework Help: physics

Posted by kalisha on Sunday, March 7, 2010 at 11:30pm.

A woman pulls a 23 kg suitcase using a rope attached to the suitcase at an angle of 38 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.2. a) Draw a situation and a force diagram of the suitcase, labeling all forces clearly. b) With what force does the woman have to pull to start the suitcase moving from rest? c) If she continues to pull with this force after the suitcase is moving, what will be the suitcase's acceleration? d) How long will she have to pull the suitcase with this force unitil the suitcase is moving at 2 m/s? e) Discuss whether or not your answers to parts a through d are reasonable. Be specific about why you think the answers are or are not reasonable.

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