Homework Help: physics!

Posted by Danreb on Sunday, October 19, 2008 at 9:20pm.

A girl shoots an arrow from the top of a cliff. The arrow is initially at a point 20 meters above the level field below. The arrow is shot at an angle of 30 degrees above the horizontal with a speed of 39.2m/s. How far out from the base of the cliff will the arrow land?

physics! - bobpursley, Sunday, October 19, 2008 at 9:44pm
You need to first find the time in the air, from the vertical flight equation. You can figure the initial vertical velocity from the angle.

hcliff=vi*time -1/2 g time^2
solve for time.

Then, use that time for the horizontal equation..

d=vhorizontal*tiem
physics! - Danreb, Sunday, October 19, 2008 at 10:20pm
i tried that. it doesnt work
physics! - Danreb, Sunday, October 19, 2008 at 10:33pm
nvm it works. thanksssssss

Answer this Question

Related Questions

physics! - A girl shoots an arrow from the top of a cliff. The arrow is ...
Physic - I am having trouble with some of this question. 'A student standing...
physics - An archer shoots an arrow horizontally with an initial velocity of 100...
Physics - You shoot an arrow into the air. 2.oo seconds later the arrow has gone...
physics - an archer at the edge of a cliff fires an arrow from a height of 14.6 ...
physics - an archer at the edge of a cliff fires an arrow from a height of 14.6 ...
Physics - An archer shoots an arrow that leaves the bow at an angle of 42 ...
Physics - An archer shoots an arrow that leaves the bow at an angle of 42 ...
physics - Marie shoots an arrow vertically upward at a sandhill crane. If the ...
physics - Marie shoots an arrow vertically upward at a sandhill crane. If the ...

For Further Reading

First Name:
School Subject:
Answer: