Recent content by aly1201

i really don't even know how to start, our teacher said he might show us on wednesday. he sent this email out to help us because so many people were emailing him questions. "replace the mass 2 force with a tension in the connecting rope of 20.7N. This would be the force applied to mass 1...

Homework Statement block 1 lying on an inclined plane is connected to block 2 by a cord passing over a pulley. the coefficient of kinetic friction between block 1 and the plane is .21 and block 1 and 2 are 2.6 kg. As block 2 moves down, determine the magnitude of the acceleration of block 1...

It was thank you! I appreciate the help!

I solved the right side and got 13.8, which i took the square root of (since the left side was squared) and got 3.7. Then I divided that by 95 and got 25.6. So now v(cos38)=25.6? If it does then I could just say 25.6/cos38=v, so 25.6/.79=32.4? I might've rounded too much so it might not be...

Ok so [95/v(cos38)]^2=[6.5-(tan38)(95)]/-4.9? because sinX/cosX=tanX

Ok but I don't understand how to get v by itself, with the cos38 and sin38 there. And in the equation you wrote is "t" supposed to be in there at all?

Homework Statement A baseball is hit over a 7.5-m-high fence 95 m from the home plate. What was the minimum speed of the ball when it left the bat? Assume the ball was hit 1 m above the ground and its path initially made a 38 degree angle with the ground. Homework Equations...

Ok thanks!

Oh ok, so I don't even have to solve for that. So the answer is really the initial velocity in the x direction? 1.85 m/s?

thats actually not projectiles launched at an angle its horizontal projectile motion sorry-I was looking at an angled problem also, which I could use help with too.

Homework Statement A diver pushes off horizontally from a cliff 35 m above the water, and they must clear rocks that extend 5 m from the base of the cliff. (a)What minimum pushoff speed is necessary to clear the rocks? (b)How long are they in the air? Homework Equations for (b)...