Question

a trolley while going down an inclined plane has an acceleration of 2cm s-2 what will be its velocity 3s after the start​

Answer 1

The velocity will be 6cm per sec

Answer 2

$\textbf{\underline{\underline{According\:to\:the\:Question}}}$

★Given :-

a = 2 cm/s [Acceleration]

t = 3 s [Time]

u = 0 [Initial velocity]

To Find :-

v = ? [Final velocity]

★Solution :-

${\boxed{\sf\:{Using\;First\; Equation\;of\;Motion}}}$

v = u + at

${\boxed{\sf\:{Substitute\;the\;value }}}$

v = 0 + 2 × 3

v = 0 + 6

v = 6 cm/s

${\boxed{\sf\:{Hence\;Final\;Velocity\;is\;6cm/s}}}$

$\boxed{\begin{minipage}{11 cm} Additional Information \\ \\ \ Distance = Speed\times Time \\ \\ Displacement=Velocity\times time \\ \\ Average\; Speed = \dfrac{Initial\:\:Speed+Final\:\:Speed}{2} \end{minipage}}$