Print Assignment View Deadline: 100% until Thursday, January 18 at 9:00 PM Inter

Question

Print Assignment View Deadline: 100% until Thursday, January 18 at 9:00 PM Interactive Example E V versus T 1-74 I-74 MAIN Interactive Example 1-74 I-74 Standard Exercise Car Ride Standard Exercse Two Thrown Balls Anna is driving from Champaign to Indianapolis on 1-74. She passes the Prospect Ave. exit at noon and maintains a constant speed of 75 mph for the entire trip. Chuck is driving in the opposite direction. He passes the Brownsburg, IN exit at 12:30pm and maintains a constant speed of 65 mph all the way to Champaign. Assume that the Brownsburg and Prospect exits are 105 miles apart, and that the road is straight. standard Exercise Two Thrown Balls 2 How far from the Prospect Ave, exit do Anna and Chuck pass each other? x- Standard Exercite Tortoise and Hare w/ So mi Submit

Explanation / Answer

va = speed of anna = 75 mph

vc = speed of chuck = 65 mph

since the direction of speed of anna and chuck are opposite, hence the relative speed is given as

Vrel = va + vc = 75 + 65 = 140 mph

D = distance between them = 105 miles

time taken to cross each other is given as

t = D/Vrel = 105/140 = 0.75 h

d = distance travelled by anna from prospect ave = va t = 75 x 0.75 = 56.25 miles

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