Practice: You pull a 5kg box vertically up with a constant 100N force for 2m. How much work do you do?

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Concept #1: Work Done by a Constant Force

Practice: You pull a 5kg box vertically up with a constant 100N force for 2m. How much work do you do?

Example #1: Work by a 2D Push/Pull

Example #2: Work Done By Friction

Concept #2: Work Done By Gravity

Practice: You push a 3kg box against a wall for a distance of 2m with a force of 40N that makes a 53° angle with the horizontal, as shown. Calculate the work done by gravity.

Example #3: Work Done on Curvy (Not straight) Paths

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