Pradeepand Richardleave an intersection at the same time. Pradeeptravels north at 3feet per secondand Richardtravels west at 4feet per second.

Question

a) Find the distance D between the pedestrians after 1 second.

b) Find the distance D between the pedestrians after 2second.

c) Find a function that models the distance D between the pedestrians in terms of the time t (in seconds) elapsed since leaving the intersection.

Answer 1

a) √(3² + 4²)

b) √(6² + 8²)

c) √[(3s)² + (4s)²]