Mechanics: Vectors and Forces in 2-D
Vectors and Forces in 2-D: Audio Guided Solution
Extra Problem 6:
A 38.8-kg wagon is towed up a hill which is inclined at 18.5 degree with respect to the horizontal. The tow rope is parallel to the incline and has a tension of 138 N in it. Assume that the wagon starts from rest at the bottom of the hill and neglect friction. How fast (in m/s) is the wagon going after moving 63.9-meters up the hill?
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...
-
... 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.
-
... 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 = ???.
-
... uses physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
-
... identifies the appropriate formula(s) to use.
-
... 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.
Return to Original Problem Set
Return to Index of Extra Problems
Return to Overview