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7.) A car starts from rest and accelerates uniformly at 1.7 m/s/s. How long will it take the car to reach a speed of 34 m/s? A 200 s B 58 s C 20 s D2 s
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7.) A car starts from rest and accelerates

uniformly at 1.7 m/s/s. How long will it
take the car to reach a speed of 34 m/s?
A 200 s
B 58 s
C 20 s
D2 s

User James Khoo
by
4.0k points

1 Answer

1 vote

It will take 20 seconds for the car to attain a speed of 34 m/s

Step-by-step explanation:

  • Acceleration of an object is given by a = velocity/time.
  • Here, acceleration of the car = 1.7 m/s² and velocity = 34 m/s. Using these, find time.
  • Time = velocity/acceleration

= 34/1.7 = 20 s

So it takes 20 seconds to attain a speed of 34 m/s

User Bernhard Hiller
by
4.7k points
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