Physics 1 Lab 5 Newtons Second Law

newtons second law

∑F=ma

definition of newtons second law

the sum of all forces on an object is equal to the acceleration of the object times its mass

equation of motion for the hanging mass (m) in Atwood machine set up

mg -T =ma

equation for motion of cart (M) with kinetic friction (Fk)

T-Fk=Ma, T-μkMg=Ma

theoretical acceleration

a= (m-μkM/ m+M)g

the quantity represented by the coefficient of the t² term (A) in the quadratic trend line (C+Bt+At²)

half the systems acceleration (a/2)

what’s the plot of the carts position vs. time looks like during acceleration

a parabola

relationship used to estimate the coefficient of kinetic friction (μk) from carts deceleration

μk= a/g, where is the magnitude of the measured deceleration

quantities measured when moving the cart on the track and observing plots in capstone software

velocity and acceleration (and their scalar forms speed and magnitude)

what a very large δ might indicate

the results are unreliable or that the errors used in comparison are either too large or too small

what the straight-line analysis involves plotting

plotting the ameasured vs. atheoretical

formula for the force of kinetic friction (Fk) for the cary on. horizontal track

Fk=μkN or Fk= μkMg