Question

which force caused the jar lid to travel faster and reach the end of the meter stick first?
the weaker force
both forces had the same effect
the stronger force
no answer text provided.

Explanation:

According to Newton's second law \(F = ma\) (where \(F\) is force, \(m\) is mass, and \(a\) is acceleration), for an object (assuming mass \(m\) is constant), a stronger force (\(F\)) will result in a larger acceleration (\(a\)). A larger acceleration means the object (jar lid in this case) will change its velocity more rapidly. If we consider the motion along the meter - stick (assuming initial velocity \(u = 0\) and the displacement \(s\) is the length of the meter - stick), using the equation \(s=ut+\frac{1}{2}at^{2}\) (\(u = 0\)), \(t=\sqrt{\frac{2s}{a}}\). Since \(s\) (length of the meter - stick) is constant, a larger \(a\) (caused by a stronger force) will lead to a smaller \(t\) (time taken to reach the end of the meter - stick).

Answer:

the STRONGER force