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Solution: How fast is the distance between car A and car B separating after one hour?

How fast is the distance between car A and car B separating after one hour?

Problem Statement: CE Board May 1997

Car A moves due East at 30 kph at the same instant car B is moving S 30° E , with a speed of 60 kph. The distance from A to B is 30 km. Find how fast is the distance between them separating after one hour.

  • A. 36 kph
  • B. 38 kph
  • C. 40 kph
  • D. 45 kph

Problem Answer:

The distance between car A and car B separating at the rate of 45 kph

Solution:

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