Homework help

[ilkjester]

Pretty sure I got it right just gonna ask you guys to make sure.

1. The problem statement, all variables and given/known data
An elevator with a mass of 1.10e3 accelerates upward at 0.45 m/s squared. What is the force acting on the elevator's support cable?


2. Relevant equations
F=ma


3. The attempt at a solution
The 9.8 is for gravity.
f=(1.10e3)(0.45+9.8)
f=1.12e4
I think I got the right amount of sig figs to but im not to good with those.

[johnsonandrew]

Looks right to me.

[Saladsamurai]

Looks good. The general rule of thumb for the # of sig figs is to look at the original problem; whatever the LOWEST amount of sig. figs. used in the problem statement is, is what you should give your answer in.

Casey

[ilkjester]

Thanks guys We have a take home test this week and im feeling pretty good about it. I don't get the whole take home part though because were aloud to use the internet and whatever but if i have any questions ill be sure to ask.