Question

Whether or not bricks slide down the bed of the dump truck depends on ...

the mass of the bricks

the angle of the bed

the contact area of the bricks

the coefficient of static friction between the bricks and the bed

the coefficient of kinetic friction between the bricks and the bed

Answer 1

true/false

Answer 2

true

Answer 3

I said True true false true false but it was wrong

Answer 4

you said what?

Answer 5

Each line is true/false

Answer 6

oo, lol sorry..wait a sec

Answer 7

yeah Im thinking about the same way.

Answer 8

The static coeficient is what you need in order to know how much force will make it go into motion

Answer 9

So you have the last two right

Answer 10

true true false false true

Answer 11

Can you explain how you got the last two? @bronzegoddess

Answer 12

lol so is it static or kinetic?

Answer 13

static friction for motion?

Answer 14

It has to overcome static friction though, doesnt it?

Answer 15

yeah true, so true true for the last two :)

Answer 16

Yeah and thats why you used the static coefficient .

Answer 17

but why kinetic friction? it doesnt have to overcome that?

Answer 18

The force required to get into motion from static is greater to keep it in motion

Answer 19

Once you overcome static friction as long as you have the same force it will stay in motion

Answer 20

ah ok great!

Answer 21

I know the first one is true. F=m*a

Answer 22

you need mass and acceleration (gravity) for motion

Answer 23

The angle also comes into play because it shows how much the force is distributed in the y axes and the x-axis so I think that one is true

Answer 24

Never heard about the third one so I think that's the one that is wrong.

Answer 25

Might want to post this on physics section.

1)T
2)T
3) N/A
4)T
5)F

What I think