Could you explain to me why the moon, orbiting the earth, or the earth orbiting the sun dont fall into them? Is it the same concept like here ? It is kinda hard to wrap my head around that. Thanks
@@PhysicsclassroomVideosyes you mentioned them as examples . I understand the case of a sattelite orbiting the earth. But for cases like the moon , or the earth around the sun ,again i have to say its difficult to wrap my head around it, beacuse the distances are much larger i geuss ? Sorry if i am being annoying , but this has been troubling me for a while . I am not sure if i my qeustions are understandable. I think i understand centripetal force and acceleration in most cases , like tension , friction etc. But in the case of gravity , with celestial bodies , its harder for me to understand it truly. (I am 15 and i havent learnt about special relativity but i know that its states that gravity is not a real force , but lets pretend it is(and that the orbits are perfect circles ). I have to ask , is the reason the earth does not eventually fall into the sun the same as the reason why a sattelite orbiting the earth doesnt fall ? Thanks in advance. This video is great
At a speed of 8000 m/s, it takes 1 s to travel 8000 m tangent to the Earth. During that time, the satellite would free fall 5 m below the tangent line (based on 0.5*g*t^2). Since the Earth curves 5 m inward for every 8000 m horizontally, a satellite with these characteristics will never strike the Earth.
One of the best videos on this topic 💖
Thank you john physics
Very informative 😃
you helped a lot
Thank you
Your welcome.
Could you explain to me why the moon, orbiting the earth, or the earth orbiting the sun dont fall into them? Is it the same concept like here ? It is kinda hard to wrap my head around that. Thanks
Tried to explain it in the first 2 minutes.
@@PhysicsclassroomVideosyes you mentioned them as examples . I understand the case of a sattelite orbiting the earth. But for cases like the moon , or the earth around the sun ,again i have to say its difficult to wrap my head around it, beacuse the distances are much larger i geuss ? Sorry if i am being annoying , but this has been troubling me for a while . I am not sure if i my qeustions are understandable. I think i understand centripetal force and acceleration in most cases , like tension , friction etc. But in the case of gravity , with celestial bodies , its harder for me to understand it truly. (I am 15 and i havent learnt about special relativity but i know that its states that gravity is not a real force , but lets pretend it is(and that the orbits are perfect circles ). I have to ask , is the reason the earth does not eventually fall into the sun the same as the reason why a sattelite orbiting the earth doesnt fall ? Thanks in advance. This video is great
@@physicsnstuff The key to remaining in orbit is having the correct tangential velocity.
I think there is a centripetal force that provide them a sufficient force to keep their path of motion
At a speed of 8000 m/s, it takes 1 s to travel 8000 m tangent to the Earth. During that time, the satellite would free fall 5 m below the tangent line (based on 0.5*g*t^2). Since the Earth curves 5 m inward for every 8000 m horizontally, a satellite with these characteristics will never strike the Earth.
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