Question

David is skateboarding at a speed of 2.5 m/s. How far can he travel on his skateboard in 100 seconds?

\large speed=\frac{distance}{time}

(1 point)
Responses

102.5 m
102.5 m

40 m
40 m

250 m
250 m

0.025 m
0.025 m
Question 5
What is the difference between speed and velocity?(1 point)
Responses

Velocity has weight.
Velocity has weight.

Velocity has time.
Velocity has time.

Velocity has distance.
Velocity has distance.

Velocity has direction.
Velocity has direction.
Question 6
An ant on a picnic table travels 30.0 cm to the east, then 15.0 cm to the west. What is the magnitude of the ant's displacement from its original position?(1 point)
Responses

45 cm to the east
45 cm to the east

45 cm to the west
45 cm to the west

15 cm to the west
15 cm to the west

15 cm to the east

Answer 1

Question 4: 250 m
- distance = speed × time = 2.5 m/s × 100 s = 250 m

Question 5: Velocity has direction.

Question 6: 15 cm to the east
- net displacement = 30.0 cm east − 15.0 cm west = 15.0 cm east