An automobile starting from rest speeds up to 72 kph with a constant rate of 4 m/s', runs at this speed for a time, and finally comes to rest at a rate of 5 m/s'. If the total distance travelled is ½ km, what is its average speed for the whole trip?

An automobile starting from rest speeds up to 72 kph with a constant rate of 4 m/s', runs at this speed for a time, and finally comes to rest at a rate of 5 m/s'. If the total distance travelled is ½ km, what is its average speed for the whole trip?

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter2: Motion

Section: Chapter Questions

Problem 9E: An airplane flying directly eastward at a constant speed travels 300 km in 2.0 h. (a) What is the...

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –

Question

2. An automobile starting from rest speeds up to 72 kph with a constant rate of 4 m/s', runs
at this speed for a time, and finally comes to rest at a rate of 5 m/s'. If the total distance
travelled is ½ km, what is its average speed for the whole trip?

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