Question

A car is travelling in the north direction. To stop, it produces a deceleration of 60 m/s^2. Which of the following is a correct representation for the deceleration?

(a) 60 m/s^2 Northwards

(b) 60 m/s^2 Southwards

(c) 60 m/s^2 Eastwards

(d) 60 m/s^2 Westwards

I have been asked this question in examination.

The origin of the question is Motion in a Straight Line topic in portion Motion in a Straight Line of Physics – Class 11

Answer 1

Right option is (c) 60 m/s^2 Eastwards

The best explanation: Deceleration always acts in the direction opposite to the direction of motion. Magnitude of deceleration is 60 m/s^2 and it acts in the direction opposite to North. Hence the answer is 60 m/s^2 Southwards.