Aroller coaster car rapidly picks up speed as it
rolls down a hlope. as it starts down the slope,
its speed is 4 m/s. but 3 seconds later, at the
bottom of the slope, its speed is 22 m/s. what is
the car’s acceleration?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.