Question

Planets are constantly accelerating as they orbit the sun, even when they are not changing
speed. Explain. plz help. i medal and fan

Answer 1

@Elsa213 can u help me if u know it?

Answer 2

or @ProfBrainstorm if u know it u can help

Answer 3

How is acceleration defined ?

Answer 4

it is defined as gradually gaining speed or velocity

Answer 5

well, to be precise it is defined as the rate of change of velocity

Answer 6

i give the link to see the question so u can see the question better ok?

Answer 7

http://static.k12.com/calms_media/media/259500_260000/259941/2/c068df990000fa81a43639ec734cf03c44077fe4/MS2_PHY_04_08_acceleration_rvw.pdf that is the link

Answer 8

thanks, not sure that i need it
you read what i posted, that acceleration is rate of change of velocity ?

Answer 9

yea

Answer 10

ok, and velocity is a vector quantity - so what do you need to specify in general, to describe a vector to someone ?

Answer 11

no its for some book work

Answer 12

that my parents have to see because im homeschooled

Answer 13

why are you telling me that ?
I'm asking you how do you specify a vector

Answer 14

idk

Answer 15

something like a temperature, you can just give a number, but that's not enough to specify a vector

Answer 16

a vector has size (also called length or magnitude) and a direction - just like an arrow pointing in a direction in space, right ?

Answer 17

ummmm i think hold on brb

Answer 18

back

Answer 19

The planets are constantly accelerating because they are moving in a circular path. Acceleration is defined as a change in velocity. Velocity is a vector made up of a speed and a direction. While the speed of the planets may be constant, the direction they are moving is not. This is a change in velocity, which is acceleration.