Recent content by kmiller

you are right to use the pythagorean theroem. That gives you the velocity.

The corners of an equilateral triangle lie on a circle of radius 2.9 m. Find the length of a side of the triangle. find meters

I got the right answer I think I am just having a hard time with what equations I have to use.

ill remember that

Homework Statement While riding on an elevator descending with a constant speed of 3.3 m/s, you accidentally drop a book from under your arm. (a) How long does it take for the book to reach the elevator floor, 1.1 m below your arm? s (b) What is the book's speed (relative to the earth)...

Homework Statement An astronaut on Mars drops a rock straight downward from a height of 0.90 m. If the acceleration of gravity on Mars is 3.73 m/s2, what is the speed of the rock when it lands? find m/s The Attempt at a Solution .90m/3.73m/s2=.2413 squareroot .2413=.491...

Yes if figured it out thanks a lot the answer was 10.844 m/s

VF2=Vi2+2a+(delta) or Xf=Xi=Vit=.5at2

I am using motion equations, Vf=Vi+at

I answer your first question you would use the motion equation position vs time: 14m*t+1/2(9.8)t 14/4.9=2.857 sec you will have to use the secs found to find the other part of the equation I found the point from it going up to being parellel with the cliff, now you have to take it further and...

given height find how fast its moving... Homework Statement Seagulls are often observed dropping clams and other shellfish from a height to the rocks below, as a means of opening the shells. If a seagull drops a shell from rest at a height of 6 m, how fast is the shell moving when it hits...

I don't know how to get the displacement I tried...doing for A 2m/8s=.25m but it was wrong...what do you add or minus from what?

I think you would have a negative displacement you instead of going forwards went backwards your displacement would be 2. I think I have problems with physics so...

displacement problems...help! Homework Statement A person on horseback moves according to the velocity-versus-time graph shown in Figure 2-29. (The vertical axis is marked in increments of 2 m/s and the horizontal axis is marked in increments of 4 s.) Find the displacement of the person...