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Wittaler [7]
3 years ago
5

What is the mechanical advantage of a single pulley

Physics
2 answers:
Viktor [21]3 years ago
5 0

the answer is 1 because a single pulley has 1 rope


Anna71 [15]3 years ago
4 0

Answer:

Assuming there is no friction, he answer would be...

The input force is equal to the output force.

Explanation:

I got this question on a test and this was the right answer

~Please mark as the brainliest :)

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A long jumper can jump a distance of 7.4 m when he takes off at an angle of 45° with respect to the horizontal. Assuming he can
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Answer:

0.02 m

Explanation:

R₁ = initial distance jumped by jumper = 7.4 m

R₂ = final distance jumped by jumper = ?

θ₁ = initial angle of jump = 45°

θ₂ = final angle of jump = 42.9°

v = speed at which jumper jumps at all time

initial distance jumped is given as

R_{1}=\frac{v^{2}Sin2\theta _{1} }{g}

final distance jumped is given as

R_{2}=\frac{v^{2}Sin2\theta _{2} }{g}

Dividing final distance by initial distance

\frac{R_{2}}{R_{1}}=\frac{Sin2\theta _{1}}{Sin2\theta _{2}}

\frac{R_{2}}{7.4}=\frac{Sin2(42.9)}{Sin2(45))}

R_{2} =7.38

distance lost is given as

d = R_{1} - R_{2}

d = 7.4 - 7.38

d = 0.02 m

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can i have brainlyest pls?

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