Describe the speed of the remote-control car over time.
A. The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds.
B. The speed of the car increases from 4 mi/h to 2 mi/h in the first 3 seconds, decreases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds.
C. The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 6 mi/h in the next second, and then remains at 6 mi/h for the last 6 seconds.
D. The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 5 seconds, and then remains at 5 mi/h for the last 10 seconds.
At 3 seconds, the car is going at 4 mi/h. At It takes the car 4 seconds to reach up to 6 miles per hour. This is what it gave me.
all 4 choices describe possible movements. But you did not provide any indications of what the user was doing to control the car, or what the car was doing initially.
A,C,D all say the car decelerates. But, the speed increased from 4mi/hr to 6mi/hr, so only B is a logical choice.
But B's language is all messed up. How can the speed increase from 4mi/hr to 2mi/hr? And then decrease to 5 mi/hr?
And there seems to be some time missing.
This whole problem needs some serious proofreading.
that is what is on my test. I cant tell you anything else because I don't have anything else
To determine the correct answer, let's analyze the information provided.
The information states that the speed of the remote-control car decreases from 4 mi/h to 2 mi/h in the first 3 seconds. This eliminates options C and D since they both mention an increase in speed.
Next, the information states that the speed increases to 5 mi/h in the next 2 seconds and remains at 5 mi/h for the last 5 seconds. This matches option A, where the speed increases and then remains constant for the last 5 seconds.
Therefore, the correct answer is A. The speed of the remote-control car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds.