16. -1 points SerCP11 3.P031 My Notes Ask Your Te How long does it take an autom

Question

16. -1 points SerCP11 3.P031 My Notes Ask Your Te How long does it take an automobile traveling in the left lane of a highway at 50.0 km/h to overtake (become even with) another car that is traveling in the right lane at 30.0 km/h when the cars' front bumpers are initially 65 m apart? Need Help?eaWaich 17. -3 points SerCP11 7 P015. My Notes O Ask Your Teacher A car initially traveling eastward turns north by traveling in a circular path at uniform speed as shown in the figure below. The length of the arc ABC is 230 m, and the car completes the turn in 38.0 s. 35.0 (a) Determine the car's speed m/s (b) What is the magnitude and direction of the acceleration when the car is at point B? magnitude m/s2 direction e counterclockwise from the +x-axis Need Help?

Explanation / Answer

16) Solution:-

This is about relative velocity.

Relative velocity of the left lane car to slower car = 50 - 30 = 20km/h

Since it is 100m behind, then time taken to catch up is
= distance / relative speed
= 0.100 / 20
= 0.005 h
= 18 seconds

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