Question

In daily life, you come across a range of motion in which (a) acceleration is in the direction of motion.

(b) acceleration is against the direction of motion. (c) acceleration is uniform.

-yecond

(d) acceleration is non-uniform. Identify one example each of the above types of motion. [Based on NCERT Activity]​

Answer 1

Question.2. A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position?

Answer. Total distance = 40 m Time taken = 40 s

Total time taken by the farmer = 2 min 20 seconds =140 seconds … 140 -s- 40 = 3.5

The farmer completes 3 and a half round of the square. i.e., if he starts from A he reaches point ‘C° after 2 minutes 20 seconds.

Displacement is AC.