Chapter 2, Problem 34P

A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. At time t = 0, the red car is at xr = 0 and the green car is at xg = 220 m. If the red car has a constant velocity of +20 km/h, the cars pass each other at x = 44.3 m, and if it has a constant velocity of +40 km/h, they pass each other at x = 77.8 m.a). (a) What is the initial velocity of the green car? (Indicate direction with the sign of your answer.)b). (b) What is the acceleration of the green car? (Indicate direction with the sign of your answer.)

A red car and a green car identical except for the color, move toward each other in adjacent lanes and parallel to an x-axis. At time t=0, the red car is at Xr = 0 and the green car is at Xg =220 m. If the red car has a constant velocity of 20km/hr, the cars pass each other at x=44.5 m, and if it has a constant velocity of 40km/hr, they will pass each other at x =76.6 m. a). Determine the time(s) associated with the motion of the red car. EV b). derive the appropriate equations for the green car. APc). What is i. the initial velocity of the green car? AN ii. The acceleration of the green car? ANd). At what point will they meet if the velocity of the green car is twice that of the red car? CR

In the figure here, a red car and a green car move toward each other in adiacent lanes and parallel to an x axis. At time t = 0, the red car is at x, = 0 and the green car is at Xg = 223 m. If the red car has a constant velocity of 21.0 km/h, the cars pass each other at x = 44.2 m. On the other hand, if the red car has a constant velocity of 42.0 km/h, they pass each other at x = 76.4 m. What are (a) the initial velocity and (b) the (constant) acceleration of the green car? Include the signs.