A 0.050-kg cart has a spherical dome that is charged to +1.0 x 10-5 C. The cart is at th...

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 4000-N/C field. How long will it take the cart to reach the bottom of the plane? What assumptions did you make?