The discussion revolves around a physics problem involving work done on a wagon due to an applied force opposing its motion. The scenario includes a wagon with a mass of 8.0 kg that is brought to rest by a force of 60 N over a duration of 2.0 seconds. Participants explore concepts related to work, force, momentum, and kinematics.
The discussion is active, with participants offering various approaches to the problem. Some have provided guidance on using equations of motion, while others are clarifying concepts and definitions. There is a mix of interpretations and methods being explored, indicating a collaborative effort to understand the problem better.
Participants note the absence of distance in the original problem statement, which complicates the application of certain equations. The discussion also reflects on the implications of choosing positive and negative directions in the context of motion.
MsHomework said:velocity final^2= velocity initial^2 + 2(acceleration)(distance)
MsHomework said:d= 1/2 (velocity initial + velocity final)t
MsHomework said:Ok well I decide to just do v=at. then I did velocity final= velocity initial + (acceleration)(distance). Which gave me the initial velocity of 15m/s. Lastly I did the d= 1/2 (velocity initial + velocity final)t equation which gave me a distance of 15 m. is this right?
MsHomework said:Finally after that when I replaced the distance i got into the work equation, I got 900J. Is this right