Answered

Westonci.ca is the premier destination for reliable answers to your questions, provided by a community of experts. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

A sports car has an average acceleration of 5.81 m/s2. How long does it take for the car to reach 60.0 mi/h, if it starts from rest?

Sagot :

sqdancefan

Answer:

  4.617 s

Explanation:

The speed of 60 mi/h can be converted to m/s:

  (60 mi/h) × (1609.344 m/mi) × (1 h)/(3600 s) = 26.8244 m/s

The relationship between speed and acceleration is ...

  v = at

  t = v/a = (26.8244 m/s)/(5.81 m/s²) ≈ 4.617 s

It will take the car 4.617 seconds to reach 60 mi/h starting from rest.

Space

Answer:

4.62 s

Explanation:

We have 3 known variables and 1 unknown variable that we want to solve for.

  • a = 5.81 m/s²
  • v₀ = 0 m/s
  • v = 60.0 mi/h
  • t = ?

Convert 60 mi/h to m/s.

  • 60 mi/h -> 26.8224 m/s

Use the kinematic equation that contains all four of these variables.

  • v = v₀ + at
  • 26.8224 = 0 + (5.81)t
  • 26.8224 = 5.81t
  • t = 4.61659208262

It takes the car 4.62 seconds to reach a velocity of 60 mi/h (26.82 m/s) if it starts from rest.

Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.