Question

A car travelling whit speed of 2m/s increase it's speed to 10m/s in a time interval of 4 seconds. What os the acceleration od car

Answer 1

$\sf{\large{\underline{\underline{EXPLANATION}}}}$

$\sf{Given}\begin{cases}\sf{u=2ms^{-1}}\\ \sf{v=10ms^{-1}}\\ \sf{t=4s}\\ \sf{a=??}\end{cases}$

$\textbf{\underline{Using equation of motion,,}}</p><p>$

$\mathtt{\boxed{\blue{v=u+at}}}$

$\sf{\implies{10=2+4a}}$

$\sf{\implies{\frac{10-2}{4}=a}}$

$\sf{\implies{\cancel\dfrac{8}{4}=a}}$

$\sf{\implies{a=2ms^{-2}}}$

Therefore,,

$\mathtt{\boxed{\blue{a=2ms^{-2}}}}$

Hope it helps ❣️❣️❣️