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A car starts from rest and accelerates at a constant rate for a distance of 130m in 7.0 s. At what rate did the car accelerate? Please help!!
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3 votes
A car starts from rest and accelerates at a constant rate for a distance of 130m in 7.0 s. At what rate did the car accelerate?

Please help!!

User Edan Maor
by
8.0k points

2 Answers

6 votes

Answer:

5.31m/s

Step-by-step explanation:

  • x = 1/2a*t^²
  • 130 = 1/2a*7²
  • 130 = 1/2a *49
  • 130 = 1/2*49*a
  • 130/0.5*49 = a
  • 130/24.5 = 5.31
User Greenafrican
by
8.2k points
2 votes

Answer:

18.57

Step-by-step explanation:

User Andreas Baumgart
by
8.4k points
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