Categorize ALL of the following scenarios/definitions:
Force and displacement in the same direction
Force and displacement in opposite direcions
Force but no displacement
Pushing a grocery cart forward
Brakes using friction to slow down a bike
Holding a plank
Positive Work
Negative Work
Zero Work
A 1kg object is sitting stationary on frictionless ice, and a 10 N force is applied to push it, which gets the object moving at 4 m/s.
What is the KE of the object before the push?
What is the KE of the object after the push?
How much work was done?
How far (what distance) was the object pushed?
Fill in the energy diagram: