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1. Bicyclists in the Tour de France reach speeds of 34.0 miles per hour (mi/h) on flat sections of the road. What is this speed in (i) meters per second (m/s)? ... (5-points) 2. A dynamite blast at a quarry launches a chunk of rock straight upward, and 1.5s later it is rising at a speed of 15%. Assuming air resistance has no effect on the rock, (i) calculate its speed at launch, and (ii) Sketch a graph of its velocity as a function of time, and show all relevant points on the plot. ... (10-points) 3. A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 3.54. The car is a distance d away. The bear is 31m behind the tourist and running at 7.5%. The tourist reaches the car safely. What is the maximum possible value for d? (Hint: Assume that the bear manages to reach the car the very moment the tourist slams the car door shut from the inside. ) ... (10-points) 4. A pilot flies her route in two straight-line segments. The displacement vector A for the first segment has a magnitude of 244km and a direction 30.0 north of east. The displacement vector B for the second segment has a magnitude of 161km and a direction due west. The resultant displacementvector is R = A + B and makes an angle 0 with the direction due east. Using the component method, find (i) the magnitude of R and (ii) the directional angle 0. ... (15-points) 5. i) Without doing any calculations, decide which segments of the graph (A, B, C, orD) indicate positive, negative, and zero average velocities. ii) Calculate the average velocity for each segment to verify your answers to part (i) . . .. (10- points) +1.25 +1.00 B A +0.75 D Position x (km) C +0.50 +0.25 0 0 0.20 0.40 0.60 0.80 1.00 Time t (h) Figure 1: Credit: WileyPlus