Question

plz help
if a trains going 60 m/s hits the brakes, and it takes the train 1.25 minutes to stop what is the train acceleration.

Answer 1

Answer:

0.706 m/s/s

Step-by-step explanation:

Because acceleration equals velocity over time

Answer 2

Answer:

As Per Provided Information

• Initial velocity of train u is 60m/s
• Final velocity of train v is 0m/s
• Time taken to stop the train t is 1.25min

Let's convert the unit of time

t = 1.25 × 60 s

t = 75 s

We have been asked to determine the acceleration of the train .

Using Formulae

$\boxed{\bf \: a = \bigg(\dfrac{v - u}{t} \bigg)}$

Substituting the value we obtain

$\sf \longrightarrow \: a \: = \dfrac{0 - 60}{75} \\ \\ \\ \sf \longrightarrow \: a \: = \cfrac{ - 60}{75} \\ \\ \\ \sf \longrightarrow \: a \: = \cancel\cfrac{ - 60}{75} \\ \\ \\ \sf \longrightarrow \: a \: = - 0.8 {ms}^{ - 2}$

Here, negative sign show deceleration .

Therefore,

• Acceleration of the train is -0.8m/s²