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3 years ago

How much work is done if I use 5N of force to move an object 2 meters

Physics

2 answers:

alina1380 [7]3 years ago

6 0

W=Fd. W=5•2=10. It’d be 10 joules.

frez [133]3 years ago

5 0

Answer:

Explanation:the forumla fr work is force times distance so 10 hope this helps god bless

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Eddi Din [679]

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Does it take more force to slow something down than to speed it up.

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2 years ago

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Answer:

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$3\lambda/2 = L$

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$y(x,t) = (A\sin(kx))\sin(\omega t) = A\sin(\frac{\omega}{v}x)\sin(\omega t) = A\sin(\frac{2\pi f}{v}x)\sin(2\pi ft) = A\sin(\frac{2\pi}{\lambda}x)\sin(\frac{2\pi v}{\lambda}t) = (2.45\times 10^{-3})\sin(5.7x)\sin(59.94t)$

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$v_y(x,t) = \frac{dy(x,t)}{dt} = \omega A\sin(kx)\cos(\omega t)\\a_y(x,t) = \frac{dv(x,t)}{dt} = -\omega^2A\sin(kx)\sin(\omega t)$

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$59.94t = \pi\\t = \pi/59.94 = 0.0524~s$

This is the time when the velocity is maximum. So, the maximum velocity can be found by plugging this time into the velocity function:

$v_y(x=0.138,t=0.0524) = (59.94)(2.45\times 10^{-3})\sin((5.7)(0.138))\cos((59.94)(0.0524)) = 0.002~m/s$

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3 years ago

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kirza4 [7]

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