Physics Assignment Help Question

Posted on 2014-11-28 06:55:00 in Physics by RILEY

A model rocket with mass 1.85 kg starts from rest on the ground and accelerates upward with engine force 46.2 N. From launch until the rocket reaches a height of 150m find the work done by the rocket engine alone. Give your answer in Joules In the previous problem, find the work done by gravity only. Give your answer in Joules In the previous two problems, find the net work. Give your answer in Joules. A 45.0-kg crate is dragged at constant velocity 8.20 m across a horizontal floor with a rope making a 30 degree angle above the horizontal. The coefficient of kinetic friction is 0.250. Find the work done by friction. Give your answer in Joules.

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