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Choose whether the following is speed, velocity, or acceleration.

_________Janet runs 6.4 miles in one hour.
_________Joseph rides his bike for 30 miles in an hour going west.
_________A turtle walks north at a steady pace and then makes a left turn to head west at the same steady pace.
_________A sports car goes from 0 to 60 mph in 1 second heading south.

Respuesta :

audreyn06

Speed is the rate at which an object's position is changing. It only has magnitude, so speed cannot be negative.

Velocity is also the rate at which an object's position is changing. However, it has both magnitude and direction, so velocity can be negative.

Acceleration is the rate at which an object's velocity is changing. It has both magnitude and direction.

Applying these definitions:

Janet runs 6.4 miles in one hour.

  • Speed. There is no specified direction, and the rate at which the object's position is changing is changing.

Joseph rides his bike for 30 miles in an hour going west.

  • Velocity. The direction at which Joseph is traveling is specified as well as the magnitude of how fast his position is changing.

A turtle walks north at a steady pace and then makes a left turn to head west at the same steady pace.

  • Velocity. The direction at which the turtle is traveling is specified as well as the magnitude of how fast its position is changing. Although we are not given a numerical value for the magnitude, we know that it is the same 'steady pace'.

A sports car goes from 0 to 60 mph in 1 second heading south.

  • Acceleration. The object's velocity is changing, as it goes from 0 to 60 miles per hour.

Learn more about speed, velocity, and acceleration here: https://brainly.com/question/24990123

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