Dr. Gundersen PHY201 Midterm #1 September 22, 2021 [2.] A drag racer starts from rest at the origin. During the first stage of the race, the car undergoes constant acceleration until it reaches a maximum velocity of 150 m/s at a time of t1=3s. During stage two, the car travels at this maximum velocity until t2 5s. During the third stage, a drag chute is released and the drag racer undergoes a constant deceleration until it stops at t3=10s. 200 150 100 TIT TITTITITT TITT Velocity (m/s) 50 2 t,=3 4 t2= 5 8 t,=10 Time (s) [2A.] [9 points] Use the above graph of velocity versus time to determine numerical values for the displacement Ax, average velocity Vavg and average acceleration in each stage of the car's motion. Show work below and fill out the table with numerical answers and units. Stage 1 (0 to ti) Stage 2 (ti to t2) Stage 3 (t2 to t3) displacement Ax average velocity Vavg average acceleration UDr. Gundersen PHY201 Midterm #1 September 22, 2021 Position (In) [2B,] [6 points] On the graph of position versus time below, clearly indicate the position of the car at the end of each stage and connect these positions with curves that are consistent with the velocity versus time graph above. 1000 900 800 700 600 500 400 300 200 100 0 0 1 2 t,=3 4 t2=5 6 7 8 9 t3=10 Time (s) [2C.] [6 points] A second car starts from rest at the origin and undergoes uniform acceleration and travels the same distance as the rst car in the same amount of time (t3). What is the second car's acceleration and speed after 10 seconds? [2D,] [4 points] For the second car, draw the velocity of the car versus time on the rst graph and the position of the car versus time on the second graph. Clearly label the graphs to indicate which line is associated with which car