3 years ago

What type of lever has the fulcrum between the resistance arm and the effort arm?

Physics

1 answer:

crimeas [40]3 years ago

4 0

I’m not really sure but I think it’s D type 1 lever

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3 years ago

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4 years ago

Some help me on this please

satela [25.4K]

Answer:

Changes in the object's momentum (answer D)

Explanation:

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3 years ago

A 17926-lb truck enters an emergency exit ramp at a speed of 75.6 ft/s. It travels for 6.4 s before its speed is reduced to 30.3

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Answer:

$F_{braking}=337299 pdl$

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Impulse-Momentum relation:

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$F_{total}=-F_{braking}+mgsin{\theta}$

We solve the equations in order to find the braking force:

$F_{braking}=m(v_{o}-v{f})/t+mgsin{\theta}=17926(75.6-30.3)/6.4+17926*32.17*sin21.4=337299 pdl$

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3 years ago