Projectile Motion - D.O.M - 3 UNITZZ (1 Viewer)

[HeroicPandas]

Direction of Motion question -
I JUST NEED ANSWERS FOR EACH PART, NO WORKING OUT IS NEEDED.

A steady wind is blowing with a speed of 36km/hour. From clouds moving horizontally with the wind, heavy raindrops fall to the ground 200m below.

a) Find the time taken for a drop to reach the ground.

b) Find the speed and angle at which a drop hits the ground (assumed horizontally).

c) At what angle does a drop hit the ground when the wind speed is double. (Air resistance may be neglected and the value of g = 10m/s^2 may be assumed)

Thanks.

 

[iampeterr]

a) root40?

 

[HeroicPandas]

yes

 

[COLDBOY]

a) sqrt(40)

b) 11.79m/s and 148 degrees from the positve direction of the x-axis.

c) 162.45 degrees

 

[kingkong123]

<a href="http://www.codecogs.com/eqnedit.php?latex=\\ (a)$ $ 2\sqrt{10}$ $ms^{-1}\\(b)$ $v=10 \sqrt{41} $ $ms^{-1}$ at an angle of $81^{o}1'\\(c)$ $\theta=72^{o}27'" target="_blank"><img src="http://latex.codecogs.com/gif.latex?\\ (a)$ $ 2\sqrt{10}$ $ms^{-1}\\(b)$ $v=10 \sqrt{41} $ $ms^{-1}$ at an angle of $81^{o}1'\\(c)$ $\theta=72^{o}27'" title="\\ (a)$ $ 2\sqrt{10}$ $ms^{-1}\\(b)$ $v=10 \sqrt{41} $ $ms^{-1}$ at an angle of $81^{o}1'\\(c)$ $\theta=72^{o}27'" /></a>

 

[COLDBOY]

Trolls!!!!! They've taken over Youtube, they've diminished the very fabrics of Facebook and now they have come to take away Mathematics! No MORE! Leave me be. Leave mathematics alone! Go back underneath your bridges and wait for goats to cross. For you shall not envelope mathematics!!!!!