posted by Bobby C .
On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.80 m/s2.
What is the net force acting on the car?
I have determined:
1) the force acting on the car by the trailer is 972 N.
2) The force acting on the trailer by the car is 972 N.
3) And the force required to produce such an acceleration is 3312 N.
The block in lies on a horizontal frictionless surface and is attached to the free end of the spring, with a spring constant of 56 N/m. Initially, the spring is at its relaxed length and the block is stationary at x = 0 m. Then an applied force with a constant magnitude of 3.0 N pulls the block in the positive direction of the x axis, stretching the spring until the block stops. What is the position of the block at the stopping point?