Question

.

A
saloon car starting from rest will accelerates
to velocity of 48 km/h in 10 seconds. calculate
the
aceleration-
What’s the answer ?

Answer 1

47

Step-by-step explanation:

48km:1hr (10sec×60min=600hr)

¥ :600hr

1hr÷¥=1. 48×600÷1=2800

2800÷60=47

47 will be the acceleration

Answer 2

`\text{Initial velocity,}~ u = 0 ~ ms^(-1)\\\\\text{Final velocity,}~ v = 48~kmh^(-1) = (48* 1000)/(3600) ms^(-1) = 13.33 ms^(-1)\\ \\\text{Time,}~ t = 10~ sec\\\\\text{Acceleration,}~ a = (v-u)/(t) = (13.33-0)/(10) = (13.33)/(10) = 1.33 ~ ms^(-2)\\\\\text{Hence the acceleration of the car is}~ 1.33 ~ms^(-2).`