A race car travels northward on a straight, level track at a constant speed travels 0.756 km in 18.0 s. The return trip over the same track is made in 23.0 s
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To calculate the speed of the race car, we can use the formula:
Speed = Distance / Time
Given:
Distance traveled in the northward direction = 0.756 km
Time taken in the northward direction = 18.0 s
Let's calculate the speed of the race car in the northward direction:
Speed = 0.756 km / 18.0 s
To perform this calculation, divide the distance traveled (0.756 km) by the time taken (18.0 s).
Speed = 0.042 km/s
Now, let's calculate the speed of the return trip:
Distance traveled in the return trip = Distance traveled in the northward direction (0.756 km)
Time taken in the return trip = 23.0 s
Speed = Distance / Time
Speed = 0.756 km / 23.0 s
To calculate this, divide the distance traveled (0.756 km) by the time taken (23.0 s).
Speed = 0.033 km/s
Therefore, the speed of the race car in both directions is 0.042 km/s and 0.033 km/s for the northward and the return trip, respectively.