Answer:
airplane speed 135mph windspeed 45 mph
Explanation:
This information helps us to write down a system of linear equations
When going head wind, the speed of the wind is substracted from that of the airplane and on the return trip it is added, then:
A:=Airlplane speed
W:= Wind speed
(A+W)*1h=180mi (1)
(A-W)*2h=180mi (2)
then from (1) A=180-W (3), replacing this in (2) we get (180-W-W)*2h =180mi, then
360-4W=180, or 180=4W, then W=45 mph. Replacing this in (3) we have that A=180-45=135 mph.
It could be one of this 0.2m/s/s
or 0.5m/s/s.
Newton’s third law states that for every action there is an equal and opposite reaction therefore, the third answer is right
The law of reflection states that the angle of reflection is equal to the angle of Incidence .