A cart is inially moving at 0.5 m/s along a track with constant fricon. The cart comes to rest aer traveling 1 m. The experiment is repeated on the same track, but now the cart is inially moving at 1 m/s. How far does the cart travel before coming to rest?

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?