1a. A car drives around a circular track of diameter 154 m at a constant speed...

1a. A car drives around a circular track of diameter 154 m at a constant speed of 45.1 m/s. During the time it takes the car to travel 97 degrees around, what is the magnitude of the car s average acceleration?

b. A car starts from rest, then accelerates at a constant rate over a distance of 63 m. It then immediately decelerates at a constant rate over a distance of 122 m. The entire trip lasts a total duration of 21.7 s. What were the magnitudes of the car s accelerations for the speedup and slowdown stages respectively?

c. A spacecraft starts from rest, and makes a journey to a destination 453000 km from its starting point. It does so by accelerating at a constant rate of 13.64 m/s^2 up to the midpoint of the journey, and then decelerates at the same constant rate of 13.64 m/s^2 for the second half of the journey, ending at rest. How long did the entire journey take?

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genius_generous answered 1 month ago

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