A 0.050 kg cart has a spherical dome that is charged to +1.0 x 10–5
C. The cart is at the top of a 2.0-m long inclined plane that makes a 30° angle with the
horizontal. The cart and the plane are placed in an upward pointing vertical uniform 4000N/C E-field. How long will it take the cart to reach the bottom of the plane? What
assumptions did you make?