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Lilit [14]
3 years ago
12

For the Texas Department of Public Safety, you are investigating an accident that occurred early on a foggy morning in a remote

section of the Texas Panhandle. A 2012 Prius traveling due north collided in a highway intersection with a 2013 Dodge Durango that was traveling due east. After the collision, the wreckage of the two vehicles was locked together and skidded across the level ground until it struck a tree. You measure that the tree is 35 ft from the point of impact. The line from the point of impact to the tree is in a direction 39 north of east. From experience, you estimate that the coefficient of kinetic friction between the ground and the wreckage is 0.45. Shortly before the collision, a highway patrolman with a radar gun measured the speed of the Prius to be 50 mph and, according to a witness, the Prius driver made no attempt to slow down. Four people with a total weight of 460 lb were in the Durango. The only person in the Prius was the 150-lb driver. The Durango with its passengers had a weight of 6500 lb, and the Prius with its driver had a weight of 3042 lb.
(a) What was the Durango's speed just before the collision?

(b) How fast was the wreckage traveling just before it struck the tree?
Physics
1 answer:
Bad White [126]3 years ago
5 0

Answer:

JRJJEJERJRJERERJREREJERJJERJERTJE

ExpJERlanation:

SDSHERHJRESHERDHEDGERJEJERJERJERRJERSH

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Answer:

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Explanation:

a)

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initial temperature of car, T_i=36.5+273=309.5\ K

final temperature of car, T_f=44.4+273=317.4\ K

We know that the change in entropy is given by:

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