Question

A car starting from rest acquires speed of 20m/s in covering a distance of 100m.Calcualate the acceleration of the car​

Answer 1

Answer:

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Answer 2

Given:-

• Initial velocity, u = 0 m/s( As the cars starts from rest)
• Final velocity, v = 20 m/s
• Distance covered by the car, s = 100 m.

To Find:-

• What is the acceleration of the car?

Solution :-

• We know third law of motion is given by v² = u² + 2as.

Putting the given values :-

⇢v² = u² + 2as

⇢ (20)² = (0)² + 2×a× 100

⇢ 400 = 0 + 200a

⇢200a = 400

⇢ a = 400/200

⇢ a = 2 m/s²

• Hence, the acceleration of the car is 2 m/s².