kinetic and potential energy, physics assignment help

Anonymous
timer Asked: Mar 24th, 2017
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thank you accept $3 please all i have :(

kinetic  and potential energy, physics assignment help
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kinetic  and potential energy, physics assignment help
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kinetic  and potential energy, physics assignment help
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kinetic  and potential energy, physics assignment help
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kinetic  and potential energy, physics assignment help
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kathyulaszek
School: Duke University

Attached.

1. If the two wagons have the same kinetic energy, then:
KE(blue)=KE(red)
1
1
π‘šπ‘ 𝑣𝑏 2 = π‘šπ‘Ÿ π‘£π‘Ÿ 2
2
2
Solve for the velocity of b:
π‘šπ‘ 𝑣𝑏 2 = π‘šπ‘Ÿ π‘£π‘Ÿ 2
𝑣𝑏 = √

π‘šπ‘Ÿ π‘£π‘Ÿ 2
π‘šπ‘

π‘šπ‘Ÿ
𝑣𝑏 = π‘£π‘Ÿ √
π‘šπ‘
Since the coefficient of the velocity of red is greater than zero, the velocity of blue is
greater.
2. Use this equation, plugging in the respective variables:
𝐾𝐸 =

1
π‘šπ‘£ 2
2

1
π‘š 2
(500π‘˜π‘”)
𝐾𝐸 =
(88.43 )
2
𝑠
KE=1954966.225 J
3.
Write down the givens:
M=3.67kg
H=4.98m
The equation we need is:
1
𝐾𝐸 = 𝑀𝑣 2
2
1
𝐾𝐸 = (3.67π‘˜π‘”)(? )2
2
We don’t know the velocity when it str...

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Anonymous
Thanks, good work

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