Question

a sonar echo takes 2.2s to return from a whale speed of 1410 m/s

Answer 1

Formula
2d=v×t
d=distance
v=speed
t=time taken
2x=1410×2.2
x=1551metres

Answer 2

Hey!

t=2.2s
v=1410m/s
d=?

d=vt/2
d=1410×2.2/2
d=1,551m


Hope it helps...!!!