Question

Lance Armstrong rides his bike 20 miles east, then 8 miles south, and then 12 miles west. What is his net Displacement? Include magnitude and direction.

Answer 1

Create a coordinate plane where the origin is where Lance begins cycling. By definition, displacement only depends on initial and final positions.

Answer 2

it need to calculate resultant displacement and then time

Answer 3

Magnitude of d can be found with Phytagorean, it's \(8\sqrt{2}\). Directed SOUTH-EAST. The time can be calculated if Armstrong's velocity is known.