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A particle starts with an initial veloci...

A particle starts with an initial velocity `2.5 m//s` along the posiive x-direction and it accelerates uniformly at the rate `0.50 m//s^2.`
(a) Find the distance travelled by it in the first two seconds
(b) How much time does it take to reach the velocity `7.5 m//s` ?
(c) How much distance will it cover in reaching the velocity `7.5 m//s`?

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
(a) `S=ut+1/2 at^2`
`=(2.5xx2)+1/2(0.5)(2)^2`
`=6m=distance also`
(b) `v=u+at`
`7.5=2.5+0.5xxt rArr t=10s`
(c) `v^2=u^2+2as`
`:. (7.5)^2=(2.5)^2+(2)(0.5)s`
`rArr s=50 cm`=distance also
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