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Physics: A 1200 kg purple pickup truck tows a small 300 kg trailer using a relatively lightweight tow rope..?
An 1200 kg purple pickup truck tows a small 300 kg trailer using a relatively lightweight tow rope. The position of the trailer is given in m and time is in s. (An animation of this shows the truck pulling the trailer with a rope starting at 0 seconds to 16 seconds. It is moving horizontally from the -x axis to +x axis. I don't know why but it says y=+1)
a) What is the magnitude of the net force on the entire system (truck and trailer)? __ N
b) What is magnitude of the net force on the trailer? __ N
c) What is the magnitude of the net force on the truck? __ N
Help would be greatly appreciated!
Assuming that the force is constant, first of all you have to find the total displacement of the truck
S = x(final) - x(initial)
The displacement is connected to the acceleration of the system (a) and the time (t)
S = 1/2*a*t^2
a = 2S/(t^2)
The total force is
F = m(total)*a = (1200+300)a = 1500a
Both the trailer and the truck move with the same acceleration.
The net force on the trailer is
F = m(trailer)*a = 300a
and on the truck
F = m(truck)*a = 1200a
Purple and Brown Tag: Re-animated