question 9 (4 points)\n(01.07 mc)\nthe position of a driver each hour is shown on the graph below.\nwhat is…

question 9 (4 points)\n(01.07 mc)\nthe position of a driver each hour is shown on the graph below.\nwhat is the cars average speed from the beginning of the trip until time t = 0.5 hour?\n a 10 miles/hour\n b 20 miles/hour\n c 30 miles/hour\n d 40 miles/hour

question 9 (4 points)\n(01.07 mc)\nthe position of a driver each hour is shown on the graph below.\nwhat is the cars average speed from the beginning of the trip until time t = 0.5 hour?\n a 10 miles/hour\n b 20 miles/hour\n c 30 miles/hour\n d 40 miles/hour

Answer

Explanation:

Step1: Identify initial and final values

Initial position at (t = 0) is (0) miles, final position at (t=0.5) hour is (10) miles.

Step2: Use average - speed formula

The formula for average speed (v=\frac{\Delta x}{\Delta t}), where (\Delta x) is the change in position and (\Delta t) is the change in time. Here, (\Delta x=10 - 0=10) miles and (\Delta t = 0.5-0 = 0.5) hour. So (v=\frac{10}{0.5}=20) miles/hour.

Answer:

B. 20 miles/hour