A car with a mass of 1100 kg is being pulled by a tow truck exerts a 500 N force on the car and there is a 300 N friction force acting on the car.
If the car starts at rest at time t=0, at what time has the truck moved 100 meters?
x=v0t + 1/2 at2
The Attempt at a Solution
First off, I attempted to draw a free body diagram.
Down is gravity
Up is normal force
left is friction force
right is the force acting on the car and the truck
Then I proceeded to fill in the variables for the equation above ^^^^
V0 = 0
a = 0.20 m/s2
t=??? (trying to figure this out)
x = 100
I ended up with this result: 31.62 seconds.
The teacher said it was 33 seconds.
Help would be appreciated.