Recent content by kayjaydee

Okay! I think I understand now! thank you!

Homework Statement Block I of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N/m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been compressed a...

Homework Statement A sled with your physics teacher, having a combined mass of 125 kg, travels over a perfectly smooth icy hill.The hill is 11.0 m high and at the bottom of the hill, the sled is moving at 22.5 m/s. The center of a puddle, which is 0.60 m in diameter and covered in a thin layer...

Thank you so much! I think I understand now! I just didn't know where to start. Thanks again :smile:

Homework Statement A car starts from rest, accelerates at a constant rate, has a displacement of x and a final velocity of v. What is the final velocity (in terms of v) if the displacement was 9x? Homework Equations v^2=vo^2 + 2a(x-xo) The Attempt at a Solution I have no idea. :(