A $0\mathrm{.}0012$ C charged cart is initially at rest on a ramp $(1\mathrm{.}1$ m away from the bottom of the

ramp$).$ At the bottom of the ramp is another charge $(0\mathrm{.}012$ C$).$ Ignoring friction, how fast

is this cart $($assume $100$ kg$)$ moving after it has gone $20$ m up the ramp? Assume that the

ramp is $30$ deg. from the horizontal.

Answer rating: 100% (QA)

To solve this problem we can use the principle of conservation of energy The poten... View the full answer