Mechanics: Vectors and Forces in 2-D
Vectors and Forces in 2-D: Audio Guided Solution
Extra Problem 19:
A tractor is pulling two logs in tandem. The logs are fastened together by a chain. Each log weighs 1680 N, and the logs are moving with a constant velocity. The tractor exerts a force of 1611 N on the front log, and this same log is acted on by a force of friction of 882 N. Determine the tension (in Newtons) in the chain between the two logs.
Audio Guided Solution
Habits of an Effective Problem Solver
An effective problem solver by habit approaches a physics problem in a manner that reflects a collection of disciplined habits. An effective problem-solver...
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... read the problem carefully and develop a mental picture of the physical situation. If necessary, sketch a simple diagram of the physical situation to help you visualize it.
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... identifies the known and unknown quantities in an organized manner, equating given values to the symbols used to represent the corresponding quantity - e.g., m = 1.25 kg, µ = 0.459, vo = 0.0 m/s, Ø = 41.6º, vf = ???.
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... uses physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
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... identifies the appropriate formula(s) to use.
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... performs substitutions and algebraic manipulations in order to solve for the unknown quantity.
Read About It!
Get more information on the topic of Vectors and Motion in Two Dimensions at The Physics Classroom Tutorial.
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