Question

25.
A car accelerates from 18 km/h to 36 lem/h in 10 s. Calculate its acceleration in (1) km/h2
(ii)m/s2​

Answer 1

Answer:

u = 18km/hr = 5m/s ,v = 36km/hr = 10m/s ,t = 10s

i) a = v - u / t

     = 36 - 18 / 10

     = 18 / 10 = 9 / 5 = 1.8 km/hr

ii ) a = v - u / t

a = 10 - 5 / 10

= 5 / 10 = 1 / 2 = 0.5 m/s

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