An insect moves along the sides of a wall of dimensions 12 m × 5 m starting from one corner and reaches the diagonally opposite corner. If the insect takes 2 s for its motion, then find the ratio of average speed to the average velocity of insect.
17 : 13
Total distance covered by the insect = AB + BC = 17
Total displacement of the insect = AC = 13 (By pythagoras theorem)
Average speedAverage velocity=[Total distancetime][Total displacementtime]=[Total distanceTotal displacement]=1713=17:13.