Question

a frog hops along as straight line path from point 'A'to point 'B' in 10 second  and then turns and hops to point 'C' in another 5 second .calculate the average speed and average velocity of the frog  for the motion between.                                     

Answer 1

Let distance from A to C=x m.
Let distance from B to C=y m.
Average speed=m/s(x+y)/(15)=(x+y)/15 m/s
Displacement=x m along A to C
Average Velocity=x/15 m/s

Answer 2

Answer:

Let the distance from a to c=x m.

Let thedistance from b to c=y m.

Average speed=m/s(x+y)/(15)=(x+y)/15 m/s

Displacement=x m along a to c

Average Velocity=x/15 m/s

avg.speed=(x+y)15 m/s

avg.velocity=x/15 m/s

Explanation: