1.

The wheels of an automobile are locked as it slides to a stop from an initial speed of 1 = 44 m/s. If the coefficient of kinetic friction is 0.41 and the road is horizontal, how long (in seconds) does it take the car to stop? Take the acceleration due to gravity, g = 9.8 m/s. Please round your answer to two decimal places.A woman, whose mass is m = 70 kg, stands on a bathroom scale in an elevator that is not moving. The scale reads her actual weight, w = mg. The elevator then moves down at an acceleration of a = + 4.92 m/s2. What does the scale read (the apparent weight, wa) while the elevator moves down? Take the acceleration due to gravity, g = 9.8 m/s . Please round your answer to the nearest whole number (integer).A cup of coffee is sitting on a table in a recreational vehicle (RV). The cup slides toward the back of the RV. According to Newton's first law, which one or more of the following statements could describe the motion of the RV? (A) The RV is at rest, and the driver suddenly accelerates. (B) The RV is moving forward, and the driver suddenly hits the breaks. (C) The RV is moving backward, and the driver suddenly hits the breaks