Homework Help Regarding Newton's Theory

[Masrat_A]

Hello all; this my first time ever taking physics, and I am in dire need of some help with homework. I've had an attempt at part A (please take a look and provide feedback), but have no clue where to even begin on part B (how would I go about calculating questions 5, 6, and 7, to be precise?). Any help would be appreciated.

1. Homework Statement
Part A: http://imgur.com/f3rck0i
Part B: http://imgur.com/1zZCev2

Homework Equations

The Attempt at a Solution

Attempt at part A: http://imgur.com/IATMT4e

 

[FactChecker]

One question about Part A before moving on to Part B:
The way you calculated average deviation will always be 0. Are you sure that it is not supposed to be standard deviation? That is the square root of the average of the squares of the D₁, D₂, D₃, D₄. (Actually it is more accurate to divide by 3 than by 4 since using the sample mean will tend to give you smaller deviations than if you knew and used the real distribution mean.)

 

[Masrat_A]

Thank you for your response!

By going through my class notes again, it seems that I had made a couple of mistakes on my A.D and %A.D. The average is actually meant to be 0.03*10²⁴kg, and percentage 5%.

Here are my updated solutions to part A: http://i.imgur.com/OTma5c6h.jpg

 

[FactChecker]

Thank you for your response!

By going through my class notes again, it seems that I had made a couple of mistakes on my A.D and %A.D. The average is actually meant to be 0.03*10²⁴kg, and percentage 5%.

Here are my updated solutions to part A: http://i.imgur.com/OTma5c6h.jpg

You should read my post above. The way you are calculating it, A.D. will always be 0. Your answer is wrong.