A five-ton (English ton) car was running on a horizontal highway at a velocity of 60 km/h. And then the driver in the car saw an accident. The diver pressed the brake pedal to make the car full stop. The car skidding on the road to form a mark of 80 m long. Assume that the break force is constant, please calculate the force that applied to the car. The local acceleration of gravity is 9.81 m/s2. The force that applied to the car, F=Answer -8700 N

Select the correct answer. anna will wear a black dress when she attends het cousin's wedding. which color(s) does the dress absorb? a. all colors b. no colors c. red and green d. white

Determine the maximum r-value of the polar equation r =3+3 cos 0

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.