Question

Hello..... plzz answer it

If a Vehicle starts from rest attain uniform velocity 20m/s in 5 seconds Calculate
Its acceleration​

Answer 1

Given

• Initial Velocity = 0 m/s
• Final Velocity = 20 m/s
• Time = 5 sec

To Find

• Acceleration of the vehicle

Solution

● v = u + at [First Equation of Motion]

✭ Acceleration of the vehicle :

→ v = u + at

→ 20 = 0 + (a × 5)

→ 20 = 5a

→ 20/5 = a

→ Acceleration = 4 m/s²

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Other Method

• Acceleration = (v-u)/t

→ (20-0)/5

→ 20/5

→ Acceleration = 4 m/s²

Answer 2

Answer:

Given :-

• A vehicle starts from rest attain uniform velocity 20 m/s in 5 seconds.

To Find :-

• What is the acceleration.

Formula Used :-

✦ v = u + at ✦

where,

• v = Final velocity
• u = Initial velocity
• a = Acceleration
• t = Time

Solution :-

Given :

• Initial velocity = 0 m/s
• Final velocity = 20 m/s
• Time = 5 seconds

According to the question by using the formula we get,

⇒ 20 = 0 + a(5)

⇒ 20 = 0 + 5a

⇒ 20 = 5a

⇒ 20 ÷ 5 = a

⇒ 4 = a

➠ a = 4 m/s²

∴ The acceleration of a vehicle is 4 m/s² .