What constant acceleration is required to increase the speed of a car from 26 mi/h to 56 mi/h in 5 s? What constant acceleration is required to increase the speed of a car from 26 mi/h to 56 mi/h in 5...
What constant acceleration is required to increase the speed of a car from 26 mi/h to 56 mi/h in 5 s?
What constant acceleration is required to increase the speed of a car from 26 mi/h to 56 mi/h in 5 s? (Round your answer to two decimal places.)
_____________ft/s^2
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Expert Answers
calendarEducator since 2012
write12 answers
starTop subjects are Math and Science
Start by stating your necessary unit conversions:
`1 hr = 3600 s`
`1mi=5280 ft`
The required formula to calculate acceleration is:
`a = (v2 - v1) / t`
where, `a = `acceleration, `v2 = ` final speed, `v1 = ` initial speed, and `t = time`
` ``v1 = 26` mi/h `* 1/3600`h/s `* 5280` ft/mi
`= 38.13 ft/s`
`v2 = 56 `...
(The entire section contains 2 answers and 154 words.)
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calendarEducator since 2010
write12,544 answers
starTop subjects are Math, Science, and Business
Use the formula v=u+at where v is the final velocity, u is the initial velocity, a is acceleration and t is time
t = 5 seconds
v = 56 mph = 56*5280/3600 f/s
u = 26mph = 26*5280/3600 f/s
the formula can be reduced to a = (v-u)/t
a = (56*5280/3600-26*5280/3600)/5 = 8.80 f/s^2
Acceleration of car is 8.80 f/s^2
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