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Blababa [14]
3 years ago
7

While playing Quidditch you throw the quaffle straight down to the person below you at

Physics
1 answer:
oee [108]3 years ago
3 0

Answer:

the ans will be because it has 1.672

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heat and light energy

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An object in space is initially stationary relative to the Earth. Then, a force begins acting on the object, starting with a for
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A car traveling 34 mi/h accelerates uniformly for 4 s, covering 615 ft in this time. What was its acceleration? Round your answe
Contact [7]

Answer:

51.94 ft/s²

257.63 ft/s

Explanation:

t = Time taken = 4 s

u = Initial velocity = 34 mi/h

v = Final velocity

s = Displacement = 615 ft

a = Acceleration

Converting velocity to ft/s

34\ mi/h=\frac{34\times 5280}{3600}=49.87\ ft/s

Equation of motion

s=ut+\frac{1}{2}at^2\\\Rightarrow a=2\frac{s-ut}{t^2}\\\Rightarrow a=2\left(\frac{615-49.87\times 4}{4^2}\right)\\\Rightarrow a=51.94\ ft/s^2

Acceleration is 51.94 ft/s²

v=u+at\\\Rightarrow v=49.87+51.94\times 4\\\Rightarrow v=257.63\ ft/s

Final velocity at this time is 257.63 ft/s

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3 years ago
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Which statements describe the motion of the object represented by the graph? Check all that apply.
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