Recent content by unholymist

A skier starts from a hill 1000m high... Homework Statement A skier starts from a hill 1000m high. She skies down the slope a distance of 800m and passes a tree. During this time she has covered a horizontal distance of 700m. a) Calculate her velocity, in km/h, as she passes the tree...

Well... I know that there's that special triangle with the 45 degree angles but the value wouldn't be exactly √2 here... how would I determine the actual value?

Homework Statement A baseball is hit at a 45 degree angle 1.3m above the ground. It barely clears a 3m wall 130m away. With what velocity was the ball hit? Homework Equations Equations of Motion The Attempt at a Solution So I realized that without air resistance this would be a...

Hehehe yeah. I was in a hurry. >.< That's an embarrassing mistake. Thanks for the help everyone. Figured it out... don't how I didn't realize that right away.

Homework Statement I am having some trouble with a question. Here it is: David is driving along at 25m/s when he sees a stop sign ahead. He hits the breaks at 10m from the sign. He decelerates at 4m/s-squared. Does he stop in time? Homework Equations We were given the equations of motion...