a bus decreases its speed from 80km/h to 60 km/h in 5 s. find the acceleration of the bus.
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the formula for getting the deceleration is.
final velocity - initial velocity = acceleration x time
let a be acceleration and
convert 5 secs into hours
5 secs x 1 min/60 secs x 1 hour/60 mins = 5/3600 = 1/720 hr
60 km/hr - 80 km/hr = (1/720 hr)a
-20 km/hr = a/720 hr
cross multiply...
-14,400 km/hr^2 = a
plz mark as brainliest if helpful
final velocity - initial velocity = acceleration x time
let a be acceleration and
convert 5 secs into hours
5 secs x 1 min/60 secs x 1 hour/60 mins = 5/3600 = 1/720 hr
60 km/hr - 80 km/hr = (1/720 hr)a
-20 km/hr = a/720 hr
cross multiply...
-14,400 km/hr^2 = a
plz mark as brainliest if helpful
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