1.

A racing car has a uniform acceleration of `4 m//s^(2)`. What distance will it cover in `10 s` after start ?

Answer» Here, `" "` Distance covered, s = ? `" "` (To be caculated)
`" "` Initial velocity, `u` = 0
`" "` Acceleration, `a= 4" m" s^(-2)`
And, `" "` Time, `t=10` s
Now, `" "s=ut+(1)/(2) at^(2)`
So, `" " s= 0xx10+ (1)/(2) xx 4 xx (10)^(2)`
`" "s = 0+2xx100`
`" "s=200" m"`
Thus, the distance covered by the racing car in 10 s is 200 metres.


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