Question

Ravi jogs from one end A to the other end B of a straight 250 m road in 1 min and 40 s. He then turns around and jogs 50 m back to a point C in 30 s. Calculate average speed and average velocity in jogging from (a) A to B (ii) A to C

Answer 1

Answer:

From A to B

speed =  distance/ time

speed = 250 / 100

= 25/10= 2.5m/s

velocity = total displacement /total time

displacement = shortest distance between initial and final positions

disp = 250

vel = 250/100= 2.5m/s

From A to C

speed = 300 /130 = 2.3m/s

disp = 250-50   (shortest distance)

vel = 200/130

1.53m/s

Explanation: