Question

A river is 480 m wide. The banks are straight and parallel (see figure). The current is 2.4 m/s and is parallel to the banks. A boat has a speed of 3.0 m/s in still water .The pilot of the boat wishes to go on a straight line from A to B, where AB is perpendicular to the banks. How much time (in second) is required to cross the river?

Answer 1

Question Nahin samajh mein a raha hai

Answer 2

Answer:

I Hope IT'S Helpful PLZ Make Me BRINCLY I need only 1 brincly plz make me brincly plz

Explanation:

(a)

y=v

y

t⟹d=vt

⟹t=

10

400

=40s

(b)

x=v

x

t=ut

⟹x=2×40=80m