An object on a number line moved from x = 15 cm to x = 165 cm and then moved back to x = 25 cm, all in a time of 100 seconds. What was the average velocity of the object?
What was the average speed of the object?

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Δx/Δt = 10cm/100s = 0.1 m/s
Δx/Δt = (165-15cm) + (165-25) / 100s = 290 cm / 100s = 2.9 cm/s

gravititional force is a force that is acting around you, it is non-contactable and it is a force that pulls you to the core of the earth.

brainliest

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

one "light year" is the distance that light travels, through vacuum, in one julian year.   that's 365.25 days, of 24 hours each.