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LonePieceOfToast:
A ball starts from rest. It rolls down a ramp and reaches the ground after 4 seconds. Its final velocity when it reaches the ground is 7.0 meters/second. The initial velocity of the ball is 0 / 1.75 / 7 meters/second, and its acceleration is -7 / 0 / 1.75 / 7 meters/second2
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lowkey:
What is it asking?
LonePieceOfToast:
LonePieceOfToast:
lowkey:
Oh okay. If a ball starts from rest, the initial velocity is zero. Knowing this, what is your answer for number one?
LonePieceOfToast:
7?
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lowkey:
Um, no, zero. Says the ball starts from rest, which means the initial velocity is zero, which means the first one is zero
LonePieceOfToast:
oh I thought you meant the second one
lowkey:
Lol the second one So to find out acceleration, you use the formula v=at 7=a(4)
lowkey:
a=1.75
LonePieceOfToast:
oh ok I promise I'm not that dumb lol
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lowkey:
?
LonePieceOfToast:
ok never mind lol have a good evening
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