Question

You're at rest in a hammock when a hungry mosquito sees an opportunity for lunch. A mild 2-m/s breeze is blowing. If the mosquito joins you for lunch it should hover over you by flying a. a bit faster than wind speed. b. None of these c. against the breeze at 2 m/s. d. with the breeze at 2 m/s.

Answer 1

option C)  against the breeze at 2 m/s

velocity of the mosquito wrt ground has to be zero if it wants to have lunch.

Vmosquito,ground = Vair,ground + Vmosquito,air

0 = 2 m/s + Vmosquito,air

  Vmosquito,air = -2 m/s

2 m/s against breeze