![]() Since the boat is required to stop, T2 = 0. Principle of Work and Energy: Here, the bumper resisting force F does negative work since it acts in the opposite direction to that of displacement. Determine the maximum distance the boat dents the bumper if its approaching speed is 3 ft>s. The motion of a 6500-lb boat is arrested using a bumper which provides a resistance as shown in the graph. The coefficient of kinetic friction between the ground and the crate is mk = 0.55. Determine the tension in the cable and the work done by this force. A 1500-lb crate is pulled along the ground with a constant speed for a distance of 25 ft, using a cable that makes an angle of 15° with the horizontal. No portion of this material may be reproduced, in any form or by any means, without permission in writing from the publisher. This material is protected under all copyright laws as they currently exist. © 2010 Pearson Education, Inc., Upper Saddle River, NJ.
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