Physics

What’s is the equation of motion

• F=mg+a

• A=d/t

• X=vavt

• rise/run

What’s is runner A position at 10 seconds

• 25

• 10

• 50

• 53

When runner A was at 0.0m, where was runner B

• 0.0m

• 50.0m

• -50.0m

• 25.0m

Which runner was ahead at 48 seconds

• Runner A

• Runner B

Juanita goes for a walk. Later her friend Heather starts to walk after her. Their motions are represented by the position time graph in.

How long had Juanita been walking when Heather started her walk

• 0.1s

• 2.0s

• 6mins

• 5mins

Will Heather catch up to Juanita? How can you tell?

• Yes

• Yes,the lines representing Juanita’s and Heather’s motions get farther apart as time increases.

• No,the lines representing Juanita’s and Heather’s motions get farther apart as time increases.

• You can’t tell

What was Juanita’s position at t=0.2h?

• 2.0km

• 4.3km

• 1.0km

• 4.0km

At what time was Heather 5.0 km from the start?

• 4.3h

• 2.8h

• 1.8h

• 3.2h

Both car A and car B leave school when a stopwatch is zero. Car A travels at a constant 75 km/h, and car B travels at a constant 85 km/h.

How far are the two cars from school when the stopwatch reads 2.0 h? C alculate the distances and show them on your graph

• Car A: 150km

  Car B: 170km

• Car A: 120km

  Car B: 130km

• Car A: 150km

  Car B: 130km

• Car A: 15km

  Car B: 170km

Both car A and car B leave school when a stopwatch is zero. Car A travels at a constant 75 km/h, and car B travels at a constant 85 km/h

Both cars passed a gas station 120 km from the school. When did each car pass the gas station?

Formula: t=x/v

• car A: 4.6hr

  Car B: 2.4hr

• car A: 4.6hr

  Car B: 5.6hr

• car A: 1.6hr

  Car B: 1.4hr

• car A: 1.6hr

  Car B: 1.5hr