2. A toy plane's is flying 55° going 8 m/s. If the wind is pushing with a velocity of 3 m/s at 30°,
find the total velocity and direction of plane.

Vp = velocity of plane

Vpx = Vp cos 55 = 8 * .57 = 4.59 m/s      velocity of plane along x-axis

Vpy = Vp sin 55 = 8 * .82 = 6.55 m/s        velocity of plane along y-axis

If Wx = -3 m/s then

Vx = 4.59 - 3 = 1.59 m/s

Vy = 6.55 m/s      wind does not affect vertical speed

tan theta = Vy / Vx = 6.55 / 1,59 = 4.12

theta = 76.4 deg    above x-axis

V = (1.59^2 + 6.55^2)^1/2 = 6.74 m/s

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min