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Physics 7 Online
zarkam21:

Help

zarkam21:

1 attachment
Vocaloid:

so that greek symbol is (mu) and I'll be using mu to represent that friction force = (mu)mg, solve for mu

zarkam21:

A

Vocaloid:

friction force = 80.85 mg = mass * gravity constant

zarkam21:

so 15*

zarkam21:

what would the gravity constant mean?

Vocaloid:

9.8

zarkam21:

447

zarkam21:

147

zarkam21:

147

Vocaloid:

80.85 = μ(9.8)(15) solve for μ

zarkam21:

B

Vocaloid:

good

zarkam21:

1 attachment
Vocaloid:

|dw:1516985811516:dw|

Vocaloid:

keep in mind normal force (when sitting on level ground) = mg

zarkam21:

F=(0.35)(5)(9.8)

Vocaloid:

good

zarkam21:

C

Vocaloid:

good

zarkam21:

1 attachment
Vocaloid:

@sillybilly123 as a rough guess it would be equal to the applied force (150N) but I'm not 100% on this one

Vocaloid:

I'm just gonna move this to physics in case you want to ask any other math/phys questions

zarkam21:

okay perfect =)

sillybilly123:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @Vocaloid @sillybilly123 as a rough guess it would be equal to the applied force (150N) but I'm not 100% on this one \(\color{#0cbb34}{\text{End of Quote}}\) Voca: Agreed Here, Newton's 2nd Law: \(\sum \mathbf F = m \mathbf a = \mathbf 0\)

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