A car moving with constant acceleration travels through a tunnel which is 80 m long in 6.0 s. If the car's speed is 15 m

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A Car Moving With Constant Acceleration Travels Through A Tunnel Which Is 80 M Long In 6 0 S If The Car S Speed Is 15 M 1 (227.43 KiB) Viewed 46 times

A car moving with constant acceleration travels through a tunnel which is 80 m long in 6.0 s. If the car's speed is 15 m/s when it exits the tunnel, how fast was it going when it entered the tunnel? a. O m/s b. 5 m/s c. 10 m/s d. 15 m/s 8. Vector A has a magnitude of 20 and is directed at an angle of 30° with respect to the positive X-axis. Vector B has a magnitude of 10 and is directed at an angle of -45° with respect to the positive x axis. Find the magnitude of the resultant vector R, where R A +B. a. 15.9 b. 24.6 C. 32.2 d. 88.4 9. Vector A has a magnitude of 20 and is directed at an angle of 30 with respect to the positive x-axis. Vector B has a magnitude of 10 and is directed at an angle of -45° with respect to the positive x axis. Find the direction of the resultant vector R, where R=A+B. a. -22° b. 0° C. +6.7° d. +13.5°