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Tanya [424]
3 years ago
12

A cyclist accelerates at a rate of 7.0 m/s2. how long will it take the cyclist to reach a speed of 18 m/s?

Mathematics
2 answers:
mart [117]3 years ago
8 0
At constant acceleration  the equation  is

v = u + at     where u = initial speed,  a = acceleration. t = time and v = final speed

So here we have  18 = 0 + 7t

t = 18/7  = 2.6 seconds ( to nearest tenth)
Delvig [45]3 years ago
5 0

Answer:

2.57 seconds

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Before we can solve this question we need to create a formula that calculates the final speed. The formula will be the following,

Vf = Vi+7(t)

Where:

  • Vf is the final Velocity
  • Vi is the initial velocity
  • A is the acceleration
  • t is the time in seconds

Now that we have the formula we can plug in the values given to us in the question and solve for the amount of time (t).

Vf = Vi+7(t)

18 = 0+7(t)

2.57 = t

Finally, we can see that it would take the cyclist 2.57 seconds (approximately) to reach a speed of 18 m/s

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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