Question

Help

Answer 1

@sillybilly123 @Vocaloid

Answer 2

mu s is the coefficient of static friction and since static friction is mu_s * N then mu_s needs to increase

Answer 3

C?

Answer 4

good

Answer 5

friction = mu * N

Answer 6

C

Answer 7

awesome

Answer 8

kinetic means moving --> automatically eliminates C/D, and kinetic friction applies to more than just air resistance so B

Answer 9

A

Answer 10

draw an Fbd

Answer 11

Fk = mu * N

Fnet = 200 - Fk

Answer 12

B

Answer 13

the friction force is a positive number

which means 200 - Fk needs to be lower than the original force

Answer 14

ugh i think I'm doing something wrong

Answer 15

D

Answer 16

good, D

Answer 17

in order to make something slide the applied force needs to be at least the static friction force *** would recommend writing this down b/c this is an important concept

so static friction = mu_s * N = > your answer

Answer 18

15*0.35

Answer 19

i got 5.25

Answer 20

don't forget g

N = mg

Fs = mg * mu

Answer 21

D

Answer 22

well done

Answer 23

A?

Answer 24

yeah that's what I got too

Answer 25

C?

Answer 26

Ugh none of these are technically true but I know they usually teach that friction opposes motion in introductory physics (even though it's not actually true), I would hesitantly say A @sillybilly123

Answer 27

That was right!

Answer 28

awesome