Thursday

November 27, 2014

November 27, 2014

Posted by **sammi** on Wednesday, October 15, 2008 at 9:41pm.

for the first one do i use the formula F=-Kx to make the answer -4500 ?

and for the second i really have no idea what formula to use

what is the value for k if a spring stretches 0.4m when submitted to a 1800N force?

How much force is needed to keep a 23 kg box moving at a constant velocity across a warehouse floor if the coefficient of friction between the box and the floor is 0.88?

- physics -
**bobpursley**, Wednesday, October 15, 2008 at 9:42pmk=force/distance

moving at a constant veloicty? Well you have to supply force equal to friction: mg*mu

- physics -
**andy**, Wednesday, January 19, 2011 at 11:59pmk=F/x

=1800/0.4

=4500 N/m

**Answer this Question**

**Related Questions**

English - 1. My math exam is tomorrow. 2. Tomorrow is my math exam. 3. Tomorrow ...

Algebra please help! - I'm very confused with what I'm learning about right now...

Exam-related stress help - I have an exam tomorrow and everyone's telling me ...

french exam tomorrow, WHAT DO I DO?! - i have a french exam tomorrow and i cant ...

math - Find the percent of the increase or decrease. Original:4500 New:4005 the ...

physics - PLEASE HELP!! I HAVE A TEST TOMORROW!! if Q=30 uC, q=5.0 uC, and d=...

CHEMISTRY - ive names of the following covalent (nonmetallic) compounds: S4N2 ...

CHEMISTRY - Give names of the following covalent (nonmetallic) compounds: S4N2 ...

Math - Use the quadratic formula to solve each of the following quadratic ...

Physics Electric POtential - An electric charge q creates a field of 4500 N/C at...