After a heavy snowfall, ski resorts use explosives to intentionally create a con

Question

After a heavy snowfall, ski resorts use explosives to intentionally create a controlled avalanche. An explosive shell is fired with a speed of 800 m/s and hits the side of the mountain at a point that is 1600 m horizontally and 700 m above the launch position. Find the time the shell was in the air and the angle at which it was launched??

**Rules for solving problem correctly:

1. draw a picture

2. define x and y axes and label the origin.

3. label the coordinates of your initial and final points; use letters only, no numbers.

4. make a table of the information for x and y dimentsions.

5. Write the final position equation for each dimension

6. Count your equations and unknows.... then solve!

Answers are 74.39 s and 62.9 degrees.... I just cannot figure out how to get to these answers, I keep getting different answers.

Explanation / Answer

By using phythogarus therom

Which is at a distance of

= sqrt(1600^2+700^2)

=1746.42m

And time is 1746.42/800

=2.18s

And angle teeta= tan^-1(700/1600)

=23.62°

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