Question

a train starting from a Railway Station and moving with a speed 40km/h in 10 minutes. Find its acceleration.

Answer 1

Hey Mate !

Here is your solution :

If a train starts from a Railway station , then it will have initial velocity 0.

Initial velocity ( u ) = 0

Final velocity ( v ) = 40 km/h

Time ( t ) = 10 mins = ( 1/6 ) h

Acceleration ( a ) = ?

Using formula :

=> Acceleration ( a ) = ( v - u ) / t

= [ ( 40 km/h ) - 0 ] / ( 1/6 )h

= ( 40 km/h ) ÷ ( 1/6 )h

= ( 40 km/h ) × ( 6 / h )

= 240 km/h²

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Hope it helps !! ^_^

Answer 2

Hello dear!

Solution:

Given,

u = 0

v = 40 km/h

t = 10 minutes

For converting 10 minutes into hours by dividing with 60.

10/60 = 1/6 h

To find the acceleration,

By using the formula of acceleration,

[ a = v - u/t ]

Substitute the values.

=> a = 40 - 0 / (1/6)

=> a = 40 / (1/6)

=> a = 40 × 6

[ •°• a = 240 km/hr^2 ]

Thus, its acceleration is 240 km/hr^2.