Question

A train starting from railway station attains a speed of 21m/s in one minute.find it's acceleration.​

Answer 1

Given :

• initial velocity =0m/s
• final velocity =21m/s
• Time taken =1 minute =>60 sec

To find out:

Acceleration =?

Formula used:

$acceleration = \frac{v - u}{t}$

Solutions:

$a = \frac{0 - 21}{60}$

$\red{a = \frac{ - 21}{60} }$

$a = \frac{ - 7}{30}$

Answer 2

Answer:

0.35 m/s

Explanation:

Initial velocity=0

final velocity=21 m/s

Acceleration

a=(v-u)/t

calculation

a=(21-0)/60

a=0.35 m/s....