Question

A train moving with acceleration of 4 m/s^2 from rest for 10 seconds find the displacement covered by the train

Answer 1

Answer:

given: a = 4m/sec², t = 10 sec, u = 0

to find s

formula : s = ut + 1/2at²

=> s = 0*10 + 1/2*4*10²

=> s = 0 + 200

=> s = 200 m

train covers 200 m in 10 seconds

Answer 2

Answer :

Given -

• Acceleration = 4 m/s²
• The train starts from rest
• Time = 10 seconds

To Find -

• Displacement by the train ?

Solution -

By Newton's equation of motion : s = ut + ½at².

Here,

• s = Displacement
• u = Initial Velocity
• t = Time
• a = Acceleration

Substituting the values,

⇒ s = 0*10 + ½*4*10²

⇒ s = 0 + 2*100

⇒ s = 200 m

So, Displacement by the train = 200 m.