PART C: Multiple Choice (10 Marks) C /10] 1. A ball is thrown to the north and is experiencing projectile motion. What are the directions of the acceleration and instantaneous velocity, respectively, of the ball at maximum height (e.g., the peak of its trajectory)? a) north, north b) up, north down, north north, down e) down, down 2. A cyclist cycles 40.0 km [North] and then 30.0 km [East]. The total time taken for the trip is 1.00 h. What is its average velocity? a) 50 km/h [37. East of North] b) 70 km/h [37' East of North] c) 35 km/h [37. East of North] d) 15 km/h [37 East of North] e) None of these choices 3. A car is travelling west and approaching a stop sign. As it is slowing to a stop, the directions associated with the objects velocity and acceleration, respectively, are a) [West], [East] b) [West], [West] c) [East], [East] d) [East], [West] e) There is not enough information to tell. 4. A sprinter travels around a 400 m oval track 4 complete times. Her distance and displacement are, respectively, a) 0, 0 b) 1600 m, 0 c) 0, 1600 m d) 1600 m, 1600 m [forward] e) 100 m, 0