Question

Physics Question :-


A train moves from rest to a speed of 60 m/s in 20 seconds. What is the magnitude of its acceleration?
​

Answer 1

Answer:

acceleration = 3m/s^2

Explanation:

Initial velocity ( u)  = 0m/s

final velocity - 60 m/s

time (t) = 20s

acceleration (a) = ?

Formula"

v - u = at

60 - 0 = 20a

60 = 20a

a = 60- /20

a = 3m/s^2

Hope it helps u !!

Answer 2

$\bigstar$Required Solution :

$\:\:\:\:$

$\dag\boxed{\bf{\pmb{\mathfrak{ Acceleration\: of\: train \:is 3ms^{2}}}}} \red \bigstar$

⠀⠀⠀⠀⠀____________________________

$\:\:\:\:$

$\pmb{\red{\mathfrak{\underline{\maltese{Given :}}}}}$

$\:\:\:\:$

$:\implies$Initial velocity of train (u) = 0

$:\implies$Final velocity of train (v) = 60m/s

$:\implies$Time taken by train (T) = 20sec

$\:\:\:\:$

$\pmb{\green{\mathfrak{\underline{\maltese{Need\:To\: Find \::}}}}}$

$\:\:\:\:$

• $:\mapsto$ Acceleration of the train ?

$\:\:\:\:$

$\pmb{\purple{\mathfrak{\underline{\maltese{Formula\:Used\:Here\::}}}}}$

$\:\:\:\:$

• $:\mapsto$v = u + at

$\:\:\:\:$

$\pmb{\pink{\rm{\underline{\dag{Where :}}}}}$

$\:\:\:\:$

$\quad\quad\quad\dashrightarrow$ v = Final velocity

$\quad\quad\quad\dashrightarrow$ u = Initial velocity

$\quad\quad\quad\dashrightarrow$a = acceleration

$\quad\quad\quad\dashrightarrow$t = Time taken

$\:\:\:\:$

$\pmb{\blue{\rm{\underline{\maltese{ Understanding\: the \:concept \::}}}}}$

$\:\:\:\:$

• For solving this question whe have to apply 1st equation of motion. After putting value in formula we can easily calculate the acceleration of train !

$\:\:\:\:$

$\pmb{\red{\mathfrak{\underline{\maltese{ Putting\: value\: in \:formula \::}}}}}$

$\:\:\:\:$

$\quad\quad\quad\dashrightarrow$ v = u + at

$\quad\quad\quad\dashrightarrow$ 60m/s = 0 + a × 20s

$\quad\quad\quad\dashrightarrow$ 60 = 0 + 20a

$\quad\quad\quad\dashrightarrow$ 60 = 20a

$\quad\quad\quad\dashrightarrow$ $\boxed{\underline{\pink{\mathfrak{a = 3 m/s^{2}}}}}$

$\:\:\:\:$

$\pmb{\orange{\rm{\underline{\dag{ Therefore :}}}}}$

$\:\:\:\:$

$\circ\boxed{\bf{\underline{\underbrace{\pmb{ Acceleration\: of\: train \:is 3ms^{2}}}}}} \red \bigstar$

____________________________

$\:\:\:\:$