a-train-covers-a-distance-of-1500-mi-initially-at-a-speed-of-180-mph-afterwards-

Question

Consider a train that initially travels 1.50 × 10³ miles at a speed of 180 mph. It then reduces its speed to 120 mph for the subsequent 3.00 × 10³miles. Determine i) the journey's total duration and ii) the train's average speed (in mph) for the entire trip.

Accepted Answer

duration = 33.3 hr, avg. speed = 135 mph

Answer

duration = 33.3 hr, avg. speed = 150 mph

Answer

duration = 25.3 hr, avg. speed = 135 mph

Answer

duration = 25.3 hr, avg. speed = 150 mph

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Consider a train that initially travels 1.50 × 10³ miles at a speed of 180 mph. It then reduces its speed to 120 mph for the subsequent 3.00 × 10³miles. Determine i) the journey's total duration and ii) the train's average speed (in mph) for the entire trip.

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Consider a train that initially travels 1.50 × 103 miles at a speed of 180 mph. It then reduces its speed to 120 mph for the subsequent 3.00 × 103 miles. Determine i) the journey's total duration and ii) the train's average speed (in mph) for the entire trip.

Consider a train that initially travels 1.50 × 10³ miles at a speed of 180 mph. It then reduces its speed to 120 mph for the subsequent 3.00 × 10³miles. Determine i) the journey's total duration and ii) the train's average speed (in mph) for the entire trip.