Question

Initial velocity of a car is 36 km/hr. Find the distance after one min, if it goes with acceleration 2m/s².

[A] 4000 m.
[B] 4200 m.
[C] 4400 m.
[D] 4600 m.​

Answer 1

B)4200m. Is the correct answer

Answer 2

• 
  `\bf\pink{4200\:m}`

Step-by-step explanation:

Given :-

• 
  `\sf\red{ Initial \ velocity = 36km/hr = 10m/s}`
• 
  `\sf\orange{ Acceleration = 2m/s^(2)}`
• 
  `\sf\green{Time = 1\:min = 60\: sec}`

To Find :-

• 
  `\sf\blue{Distance \: Travelled}`

Formula used :-

• 
  `\sf\purple{s = ut + (1)/(2) at^(2)}`

Where,

• s =
  `\bold{Distance}`
• t =
  `\bold{Time }`
• u =
  `\bold{ Initial \ velocity}`
• a =
  `\bodl{Acceleration}`

Solution :-

`\Rightarrow\:\:\rm{s = 10(60) + \frac{1}{\cancel{2}} * \cancel{2} * (60)^(2)}`

`\Rightarrow\:\:\rm{s = 600+60* 60}`

`\Rightarrow\:\:\rm{s = 600 + 3600}`

`\Rightarrow\:\:\rm{s = {\bf{\red{4200\:m}}}}`

• Hence,
  `\bf\green{(B)}` is the correct option