Tuesday
October 21, 2014

Homework Help: Physics

Posted by Liz on Friday, October 19, 2012 at 1:20pm.

30. A truck of mass 2250 kg is used to pull a 330 kg trunk out of an old quarry as shown below. There is 550 N of rolling resistance for the truck. Ignore mass and friction of the pulley. (a) If the trunk is accelerated upward at 2.00 m/s2 what is the minimum amount of horizontal force the trucks drive wheels exert on the ground? (b) For the same conditions what is the tension in the towrope?

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