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A car starts moving from rest; If it gains avelocity of 72km/ht after to seconds what is the acceleration of the car.​
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22 votes
22 votes
A car starts moving from rest; If it gains avelocity of 72km/ht after to seconds what is the acceleration of the car.​

User Oleksi
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3.1k points

2 Answers

11 votes
11 votes

The correct answer is 10 m/s² .

User Cyrax
by
2.7k points
26 votes
26 votes

Answer:

10 m/s²

Step-by-step explanation:

Given

  • u = 0 (initial velocity as it is at rest)
  • v = 72 km/h x 5/18 = 20 m/s
  • t = 2s

Solving

  • v = u + at
  • 20 = 0 + 2a
  • 2a = 20
  • a = 10 m/s²
User Kachi
by
2.9k points
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