Question

LuLu!!! :D

Answer 1

what work (no pun intended) have you done so far?

Answer 2

the work of writing out the question....no pun intended!! :D

Answer 3

well go make some progress. at least draw a fbd

Answer 4

nnah i was joking.... i've done some of the questions but they are tooo long and difficult to type it here....

Answer 5

for the first question this is what i did...

Answer 6

first i figured out the normal force the earth was exerting the block of wood.

Normal force = mass x gravity
normal force = 0.72Kg X 9.80m/sec^2
Normal force = 7.05N This is my normal force.

Answer 7

looks good

Answer 8

from here i used te frictional formula to get my force of friction.
Force of friction = μk x 7.05N
Force of friction = 4.51N i got my friction.

Answer 9

Nor that i ad my frictinal force and normal force. i plugged them into te formula to get my net force
Applied force - frictional force = m x change in velocity/time
Applied force - 4.51N = 0.72Kg x 0.8m/sec^2
Applied force = 4.51N + 0.57N
Applied force = 5.08N
HEre is te answer to my first question....

Answer 10

now have absolutely no clue as to what do i need to do for te next question -_-

Answer 11

applied force is C.

Answer 12

you actually already finished the question lol

Answer 13

what chu mean o_o

Answer 14

can i use the force of friction for te second question???????????

Answer 15

applied force - frictional force = net force

Answer 16

i got that but help me here for a sec, can i use the frictional force tat i got for the second question

Answer 17

yes. that's why i said you did the problem already

Answer 18

aaitt....:D

Answer 19

now last thing...

Answer 20

how do i do the last question?!?!?!?!

Answer 21

silly. you started out by doing the last question.

Answer 22

applied force= actual force.

Answer 23

what chu mean?!?!?!?

Answer 24

Applied force - frictional force = m x change in velocity/time
Applied force - 4.51N = 0.72Kg x 0.8m/sec^2
Applied force = 4.51N + 0.57N
Applied force = 5.08N

=>applied force is the actual force
frictional force is the answer to part b
m x change in velocity/time is net force

Answer 25

so my applied force is te actual force....O_O

Answer 26

LOL i didn't know i am so genius :D Thanks LOve

Answer 27

yeh.. net force is the sum of all forces.

Answer 28

aigt...i need to go to the washroom.............................:"D

Answer 29

@so before you go, the frictional force = 4.51N right? and the actual applied force = 5.08N
The net force would be 5.08N - 4.51N = 0.57N right?!?!?!

Answer 30

@inkyvoyd please come back :(