Answer Happy

nate system as pictured (x = 0 at the collision point). Question 2 мы Marea finds a very interesting physics setup- a track that a puck is free to slide across without friction, but that has magnets or something like that buried in it. The advertising shows that the puck will experience a potential energy as pictured above left, but there are no details beyond that (no numbers!) Fmax At = 0.1 s Ax [cm] t Slope: 5 Intercept: 0.01 8 Fmax [N] = Marea decides to do an experiment to learn more. She places the puck such that it is in stable equilibrium (at rest), then gives it a very brief (At 0.1 s) push, the profile of which is shown in the middle plot above (she practiced with the IOLab to perfect the triangular nature of the push, and to make it quick enough that the m = 1 kg puck doesn't move significantly while she is pushing). Then she measures how far it travels along the track before stopping. She repeats the experiment multiple times, with different magnitudes Fmax of push and creates the right hand plot above. Oddly, she finds that if she pushes harder than 8 N that the puck never stops but flies off the right hand side of the track. She decides to release the puck from rest at the left end of the track at t = 0 and watch its motion. Write an equation for x(t) for the puck. HINT: You are familiar with a potential energy that looks similar to the left hand side of the U plot - you can model the system in that way to solve for the motion.