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The Mars rover, Curiosity, has a maximum speed of only 0.14 km/h. If Curiosity travels North for 60.0 s, what is its displacement?

a) 0.14 km
b) 0.07 km
c) 8.4 km
d) 0.084 km

1 Answer

3 votes

Final answer:

The Mars rover Curiosity's displacement after traveling north for 60.0 seconds at 0.14 km/h is 0.00233 km or 2.33 meters. None of the given options match this calculated displacement, suggesting a potential error in the question or options.

Step-by-step explanation:

The question asks for the displacement of the Mars rover Curiosity after traveling north for 60.0 seconds at its maximum speed of 0.14 km/h. To solve for displacement, we can use the formula displacement equals speed times time. However, we need to ensure that the time is in the correct unit to match the speed's unit of hours.

First, we convert 60 seconds into hours:

  • 60 seconds = 60/3600 hours = 1/60 hours

Next, we multiply the speed of the rover by the time in hours to find the displacement:

  • Displacement = Speed * Time = 0.14 km/h * (1/60) hours

Carrying out the multiplication gives us the displacement:

  • Displacement = 0.002333... km

When rounded to three significant figures, the rover's displacement is 0.00233 km or 2.33 meters, which is not one of the provided options, indicating a likely error in the question or options. However, if the intention was to include the correct option, the closest choice would be (d) 0.084 km, which still doesn't match the calculated answer.

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