Question

Please help.

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Answer 1

Answer:

0.33 m/s² is the correct answer to ur question :)

Answer 2

Question :

• A train starting from railway attains a speed of 20m/s in 1 minute . it's Acceleration is

$\qquad \pink{ \rule{80mm}{0.8mm}}$

Answer

• Acceleration of train = 1/3 or 0.33}

Explanation:

Given Information

• Speed of train = 20m/s
• Time taken by train = 1 minute

Need to Find out

• Acceleration of train ?

Formula used

• v = u + at

where,

• v = Final Velocity
• u = initial velocity
• a = Acceleration
• t = time

Solution

Since the train is starting from rest so it's initial velocity will be

$\large \longrightarrow \: u\: = 0$

Final velocity of the train is given in the question i.e

$\large \longrightarrow \: v\: = 20$

Time given in the question is 1 minutes

$\large \longrightarrow \: t = 1 \: minute = 60 \: s econds$

So ,applying the first equation of motion I.e

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

we will find automatically the value of Acceleration

Putting value in the above equation we will get

$\\ \longmapsto \text{v = u + at}$

$\longmapsto \text{20 = 0 + a} \times 60$

$\longmapsto \sf \: 20 = a \times 60$

$\longmapsto \sf \: a = \dfrac{2 \cancel0}{6 \cancel0}$

$\longmapsto \sf \: a = \cancel \dfrac{2}{6}$

$\large \pink {\longmapsto \fbox{\boxed{\text{Acceleration = } \frac{1}{3} \: \: or \: 0.33} \: \: \: \: }}$

Therefore it's Acceleration is 1/3 or 0.33

$\qquad \rule{80mm}{0.6mm}$

More information

• Force = Mass × Acceleration
• Energy or work = Force × Distance
• Power = Energy/ Time
• Velocity = Distance/ Time