Question

The velocity of a motor bike increases from 20 m/s to 40 m/s in 10 seconds. Its acceleration will be ______

Answer 1

Answer:

Given :

☞︎︎︎ Initial velocity of the motor bike,u = 20m/s

☞︎︎︎ Final velocity of the motor bike ,v = 40m/s

☞︎︎︎ Time taken, t = 10 sec

To Find :

Acceleration

Solution :

Using first equation of motion

$\boxed{\green{v=u+at}}$

where,

v is final velocity

u refers to initial velocity

a is acceleration

t is the time taken

☘︎ v = u + at

➪ 40 = 20 + a × 10

➪ 40 = 20 + 10a

➪ 40 - 20 = 10a

➪ a = 20/10

➪ a = 2 m/s^2

Answer 2

$\Large\sf\underline{\underline\green{Given\rightarrow}}$

• Initial Velocity :- 20 m/s

• Final Velocity :- 40m/s

• Time :- 10s.

$\Large\sf\underline{\underline\green{To\:Find\rightarrow}}$

Acceleration.

$\Large\sf\underline{\underline\green{Solution\rightarrow}}$

Using Formula :-

$\bf\red{a = \dfrac{v - u}{t} }$

Here,

V = Final Velocity.

U = Initial Velocity.

T = Time.

A = Acceleration.

$\bf\blue{a = \dfrac{40 - 20}{10} }$

$\bf\pink{a = 2m {s}^{2} }$