Vf = sqrt[((k(xi)^2) - (2fd)) / m]
I don't know how but I keep getting .506 m/s...
k*(xi)^2 = .02
2*f*d = .0064
.02 - .0064 = .0136
.0136 / .053 kg = .257
sqrt(.257) = .506 m/s...
You say you're getting 1.40 m/s but you can't with that formula, I've checked and my...
A toy cannon uses a spring to project a 5.30 g soft rubber ball. THe spring is originally compressed by 5.00 cm and has a force constant of 8 N/m. When the cannon is fired, the ball moves 15.0 cm through the horizontal barrel of the cannon and the barrel exerts a constant friction force of .032...