Question

3. On a hike you walk 5,000 m East, 3,000 m North, and 1,000 m West at a constant speed of 1 m/s. Calculate your velocity.(1 point)

A.0.44 m/s East + 0.33 m/s North

B.1.0 m/s

C.1.0 m/s East + 1.0 m/s North

D.0.55 m/s

4.You ride your bike at a constant speed of 5 ms for 300 s from your house to the mailbox. What was your acceleration for the trip?(1 point)

A.0 m/s2

B.5 m/s2

C.60 m/s2

D.300 s

Answer 1

3: 0.44 m/s East + 0.33 m/s North

4: 0 m/s2

Step-by-step explanation:

3:

total distance = 5+3+1 = 9 km

so time = 9,000seconds

distance east = 4 km

distance north = 3 km

displacement = hypotenuse of 3 4 5 triangle = 5 km

speed east = 4 km/9 k seconds = .44444.... m/s

speed north = 3 km/9k seconds = .33333.... m/s

Answer: 0.44 m/s East + 0.33 m/s North

4:

No change in speed or direction = constant velocity = no acceleration

Answer 2

3.0.44 m/s east + 0.33 m/s north

4.0 m/s2

Step-by-step explanation: