Which of the following motions is not uniform?A-A train travels at a constant velocity around a circular turn.B-A car travels at 100 km/h at a constant velocity.C-A ball rolls horizontally across a table at 0.25 m/s.D-An elevator travels upwards at zero acceleration.

Answered: Which of the following motions is not…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

Which of the following motions is not uniform?

A-	A train travels at a constant velocity around a circular turn.
B-	A car travels at 100 km/h at a constant velocity.
C-	A ball rolls horizontally across a table at 0.25 m/s.
D-	An elevator travels upwards at zero acceleration.

Expert Solution

Step 1

In circular motion, an object travelling with constant magnitude of velocity will have different directions of velocity at different points(along the tangent). Since, direction of velocity is changing that means velocity is also changing and is not constant with time.

Hence, a circular motion with constant magnitude of velocity will always be a non-uniform motion.