. Average Speed of a Vehicle The average speed of a vehicle in miles per hour on a stretch of Route 134 between 6 A.M. and 10 A.M. on a typical weekday is approximated by the expression 20t – 40 E + 50 (0

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Chapter3: Two-dimensional Kinematics
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96. Average Speed of a Vehicle The average speed of a vehicle in miles per hour on a stretch
of Route 134 between 6 A.M. and 10 A.M. on a typical weekday is approximated by the expression N
20t – 40 /E + 50 (0<t< 4)
where t is measured in hours, with t = 0 corresponding to 6 A.M. Over what interval of time is the
average speed of a vehicle less than or equal to 35 mph?
Transcribed Image Text:96. Average Speed of a Vehicle The average speed of a vehicle in miles per hour on a stretch of Route 134 between 6 A.M. and 10 A.M. on a typical weekday is approximated by the expression N 20t – 40 /E + 50 (0<t< 4) where t is measured in hours, with t = 0 corresponding to 6 A.M. Over what interval of time is the average speed of a vehicle less than or equal to 35 mph?
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