Acar is pulled with a force of 10,000 n. the car's mass is 1267 kg. but, the car covers 394.6 m in 15 seconds [a]what is the expected acceleration of the car from 10,000 n force? [b]what is the actual acceleration from the observed data of x and t? [c]what is the difference in accelerations? [d]what force caused this difference? [e]what is the magnitude and direction of the force that caused the difference in acceleration?

F=m*a=>a=F/m=10000/1267=7.89 m/s²

d=v₀t+a't²/2<=>394.6=112.5*a'=>a'=3.5

a-a'=7.89-3.5=4.39 m/s²

This difference causes friction forces

We apply the second principle of dynamics: vector: F + N + G + Ff = ma (vector vectors, I can not here)

Scalar: Ox: F-Ff = ma

            Oy N-mg = 0

Ff = -ma+ F =-1267*7.89+10000=-8869+10000=1131 N

This frictional force (Ff) is opposite to the traction (F)

c) up is the direction the magnetic force is acting on the charge.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods