Posted by **Devin** on Sunday, June 9, 2013 at 4:21pm.

A horse pulls a cart with a force of 145 newtons at an angle of 30 degrees above the horizontal and moves along at a speed of 2.5 m/s. How much work to the nearest kJ does the force do in 6 minutes?

- College Level Physics -
**Henry **, Tuesday, June 11, 2013 at 2:29pm
d = 2.5m/s * 6min*60s/min = 900 m.

Work = F*d = 145cos30 * 900 = 443,856 J.

= 444 kJ.

- petroleum engineering physics -
**daniel**, Wednesday, June 12, 2013 at 6:48pm
Vector A has a magnitude of 5.00units,and B has a magnitude of 9.00units.The two vectors make an angle of 50.0degrees with each other .Find A.B.

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