Question

and object is mating up and incline plane.Its velocity changes from 15m/s to 10m/s in two seconds.What is it's acceleration?​

Answer 1

$\Large{\underline{\underline{\bf{\red{Given}}}}}$

• Initial velocity (u) = 15m/s
• Final velocity (v) = 10m/s
• Time taken (t) = 2s

$\Large{\underline{\underline{\bf{\red{Find\:out}}}}}$

• Find the acceleration

$\Large{\underline{\underline{\bf{\red{Solution}}}}}$

Acceleration → The rate of change in velocity by time taken

$\large{\boxed{\boxed{\rm{a=\dfrac{v-u}{t}}}}} \\ \\ \\ \implies\rm a=\dfrac{10-15}{2} \\ \\ \\ \implies\rm a=\cancel\dfrac{-5}{2} \\ \\ \\ \implies\rm a=-2.5m/s^2$

Hence, the acceleration of object is -2.5m/s²

Answer 2

$\huge\sf\color{navy}{GIVEN:-}$

✪ initial velocity = 15 m/s

✪ Final velocity = 10 m/s

✪ Time = 2s

$\huge \fbox{ \tt \pink{To \: Find:-}}$

✪ acceleration ✔✔

$\huge\mathtt{FormULa:-}$

acceleration (a) $\bf\implies \frac{v-u}{t}$

$\huge{\bf{\blue{\underline{SOLUTION:-}}}}$

acceleration (a) = $\frac{v-u}{t}$

$\bf\implies \frac{10-15}{2}$

$\bf\implies \cancel\frac{-5}{2}$

$\bf\implies {-2.5m/s^2}$

$\large\mathtt{Therefore\:The \: acceleration \: is \: object =2.5m/s^2}$

$\rule{300}{2}$