Question

A car speed increases from 80km/hr to 60km/hrin 5 sec find the acceleration

Answer 1

Assuming the speed increases from 60 km/h to 80 km/h in 5 s,

Acceleration: 1.11 m/s or 4km/h

Steps:

Apply a = (v-u)/t with u = 60 km/h ; v = 80 km/h ; t = 5 sec

Also remember to convert km/h to m/s and then proceed

60 km/h = 150/9 m/s

80 km/h = 200/9 m/s

I would like you to try yourself any get the answer and check with the above information.

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