Recent content by Ytaipsw

  1. Y

    Problem finding Spring Constant

    Okay so i set EPE=KE right? Then I solve for k. k=mv^2/x^2. Then if I say Ydistance=Vsin(theta)t+1/2(g)t^2 and Xdistance=Vcos(theta)t and then solve both for t and set them equal. Then when I solve for V^2 I get: (Xdistance^2*g^2) /...
  2. Y

    Problem finding Spring Constant

    Homework Statement In a physics lab experiment, a compressed spring launches a 31g metal ball at a 25 degree angle. Compressing the spring 19cm causes the ball to hit the floor 2.0m below the point at which it leaves the spring after traveling 5.2m horizontally. What is the spring constant...
  3. Y

    How to Solve a 2D Projectile Problem: Finding Angle and Velocity

    Homework Statement A cart is moving horizontally along a straight line with a constant speed of 30m/s. A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved 80m. At what speed and at what angle to the horizontal must the...