A force of 40 N holds an ideal spring with a 20-N/m spring constant in compression. The potential energy (in J) stored in the spring is: O a. 62.5 . 10 O c. 90 O d. 40 Question 24 A 1500 kg car moving on a flat, horizontal road negotiates a curve. If the radius of the curve is 300 m and coefficient of Not yet static friction between the tires and the road (us) is 0.3, what is the maximum speed (in m/s) the car can have and still answered make the turn successfully. (g=10 m/s) Marked out of 1.50 . 20 O b. 30 P Flag question O . 10 O d. 40