A particle moves in a straight line with a constant acceleration. It passing through a distance 135 m in t second. The value of t (in second) is

A particle moves in a straight line with a constant acceleration. It p

1.	A particle moves in a straight line with a constant acceleration. It passing through a distance 135 m in t second. The value of t (in second) is
Answer» 12 9 10 `1.8` SOLUTION :`upsilon^(2)=u^(2)+2as` `a=(upsilon^(2)-u^(2))/(2s)=((20)^(2)-(10)^(2))/(2xx135)=(300)/(270)=(10)/(9)ms^(-2)` From FIRST equation of MOTION `upsilon=u+at rArr t(upsilon-u)/(a)=(20-10)/(10//9)=(10)/(10//9)=09s`