Please answer all the following questions in the document.

Q1: a rightward-moving bicycle is braking. The rubber brakes effectively provide 50N force to the left on the bicycle. Friction with the ground provides an additional 30N force on the bike. a) Sketch the situation, then find the magnitude and direction of the net force acting on the bicycle. b) If the bicycle has a mass of 40kg, find the acceleration of the bicycle. Show all work If the bicycle is initially moving at 6m/'s, how long will it take to come to rest? Show all work. ( if you did not get an answer for part 2b, use the value acceleration= 4m/s* to show your understanding.) d) If the bicycle is initially moving at 6m/s, how far does the bicycle travel before comes to rest? Show all work. (if you did not get an answer for 2c, use the value time= 3s to come to rest to show your understanding.) Q2: a rock is thrown directly upwards into the air. What is the magnitude and direction of the acceleration of the rock when it reaches its highest point? ( draw a Free body diagram if needed)