How Does Mass and Time Affect Net Force on an Object Moving Along the X-axis?

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SUMMARY

The discussion focuses on calculating the net force acting on an object moving along the x-axis, described by the position function x(t) = At - Bt³. The net force is derived using Newton's second law, resulting in the expression F(t) = -6Btm. This formula indicates that the net force is directly proportional to time and the mass of the object, with a negative sign indicating the direction of the force opposing the motion.

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An object with mass m moves along the x-axis. Its position as a function of time is given by x(t)=At-Bt^3, where A and B are constants. Calculate the net force on the object as a function of time.

ans: -6Btm
 
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What is the Newtonian formula for force which includes a derivative of position with respect to time?
 

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