Question

A plane starting from rest accelerates at 3m/s^2 for 25s. Calculate the increase in velocity after:
a. 1s
b. 5s
c. 25s

Answer 1

$\boxed{\rm{\blue{Find \longrightarrow }}}$

Velocity [v]?

$\boxed{\rm{\red{Given \longrightarrow }}}$

• $\bf{Acceleration [a] =3m/s^2 }$

• $\bf{Time [t] = 25s}$

• $\bf{initial \ velocity [u] =0m/s}$

$\boxed{\huge{\rm{\green{SoLution \rightarrow}}}}$

we know the formula of Acceleration,

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

Put values in this we get,

$\sf{\implies 3= \dfrac{0-v}{25}}$

$\sf{\implies v= 3\times 25 }$

$\sf{\implies v= 75}$

$\boxed{\bf{\underline{\therefore Velocity = 75m/s \bigstar }}}$

There is no option match So the none of the above option is correct, :)

________________________

Answer 2

Answer:

hey buddy answer is 75 s

Explanation:

hope it's help you