Question

A private plane is traveling due east at a rate of 155 mph. A south wind is blowing 35 mph. What is the actual velocity of the plane?

~120 mph
~151 mph
~159 mph
~190 mph

Answer 1

C:159MPH

Explanation:

Answer 2

The actual velocity of the plane is 159 mph.

Explanation:

It is given that, a private plane is traveling due east at a rate of 155 mph. A south wind is blowing 35 mph.

Let v₁ is the velocity of private plane and v₂ is the velocity of wind. We have to find the actual velocity of the plane. So, the resultant is given by :

`v=√(v_1^2+v_2^2)`

`v=√((155\ mph)^2+(35\ mph)^2)`

v = 158.9 mph

or

v = 159 mph

Hence, the correct option is " 159 mph ".