Good evening,

can you help me explain how we got those answers

The correct answer is

11. -4.16 m/s^2

12. 161 m

13. 33.6 N

14. 0.146

Questions

11.

SHORT ANSWER. Solve for the unknown in the problem using your understanding of physics. Show all your work, neatly, and box in your answer. 3 points each. 11) A car is 200 m from a stop sign and traveling toward the sign at 40.0 m/s. At this time, the driver suddenly realizes that they must stop the car. If it takes 0.200 s for the driver to apply the brakes, what must be the magnitude of the constant acceleration of the car after the brakes are applied so that the car will come to rest at the stop sign?12) A wind farm generator uses a two-blad aded propeller ( see figure) mounted on a pylon at a height of he length of each propeller blade is 12 m . A s A small piece from the tip of the propeller breaks off when the propeller is vertical. At that Is rant, the period of the motion of the propeller is 1.2 s. The fragment flies off horizontally, falls with negligible air resistance, and strikes the ground at P. How far is point P from the base of the pylon ? vo 12 m 20 n 13) The figure shows two wires that are tied to a 710 g mass that revolves in a horizontal circle at a constant speed of 7.5 m/s. What is the tension in the upper wire? 1.0 m 0.50 m 0.50 m 1.0 m) A 600-kg car traveling at 24.5 m/s is going and a curve having a radius of 120 m that is banked at an angle of 20 . The car is going faster than m." the curve is rated for. What is the minimum coefficient of static friction required between the road and the car's tires so the car does not skid