Vectors and Forces in Two-Dimensions: Audio Guided Solution

Mechanics: Vectors and Forces in Two-Dimensions

For each collection of listed forces, determine the vector sum or the net force.

Set A
58 N, right
42 N, left
98 N, up
98 N, down

Set B
14 N, left
16 N, up
16 N, down

Set C
12 N, up
8 N, down

Set A: ∑F = 16 N, right
Set B: ∑F = 14 N, left
Set C: ∑F = 4 N, up

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.
Identify the known and unknown quantities in an organized manner. Equate given values to the symbols used to represent the corresponding quantity - e.g., m = 1.25 kg, µ = 0.459, v_o = 0.0 m/s, Ø = 41.6º, v_f = ???.
Use physics formulas and conceptual reasoning to plot a strategy for solving for the unknown quantity.
Identify the appropriate formula(s) to use.
Perform substitutions and algebraic manipulations in order to solve for the unknown quantity.

Get more information on the topic of Vectors and Forces in Two-Dimensions at The Physics Classroom Tutorial.

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