Question

A 20 N horizontal force pushes on an 8.0 kg mass resting on a horizontal surface. The surface exerts a friction force of 14 N against the motion.

The acceleration of the 8.0 kg mass is ____ m/s^2.

Answer 1

on which planet ?

Answer 2

you can't do this.

Answer 3

context ;) is it even falling? the acceleration of a brick on a table is 0. it's not going anywhere

Answer 4

*assuming earth and the usual reference frames

Answer 5

Im sorry i have to put the rest of the question up

Answer 6

@RONNCC does that help

Answer 7

yes ;)

Answer 8

@shubhamsrg i had to add the rest of the question

Answer 9

ehh static friction right?

Answer 10

sorry. post this on @Physics.

Answer 11

just how categories work

Answer 12

yea

Answer 13

nevermind physics section, this is simple mathematics vector question ;)

Answer 14

So, 20 N pushes it, 14N opposes the motion, can you tell me the net force acting on the block ?

Answer 15

Note: Friction Alwayzz Opposes the Relative Motion

Answer 16

no am i suppose to divide something

Answer 17

So it is Alwayzz Taken as - ve

Answer 18

@Yahoo! so what should i do for the first step

Answer 19

20N is Applied Force and Friction is 14N

F total = 20 - 14 = 6N

Answer 20

and

F = ma

a = F/m

Answer 21

so is 6N the answer

Answer 22

a = 6/8

Answer 23

@Yahoo! or is 6/8 the answer