Harold goes to the post office to mail a package. The postal worker puts it on the scale and declares its weight as 23 pounds. If the spring constant of the postal scale is 810 N/m, by how much is the string compressed?

Question

shamim · Answer

Required formula is
F=kx

shamim · Answer

R u familiar with this formula

mrnood · Answer

Strictly speaking 'pounds' is a measurement of mass, not of weight.

The value measured on a spring balance is the weight (= mg)

The actual unit is lbf or poundals.

You may need this - because the spring constant in in N which IS a force so be careful with the conversion

danjs · Answer

yeah, use lbm and lbf , makes it easier, least for me

danjs · Answer

This is just a straight forward 2 force vector balancing system