I made another attempt at the question.
so I used the f=ma formula. I substituted (150 N-100 N) for f, 2.5 kg for m and I solved for a. I got 20 m/s^2 for a. would I use one of the accelerated motion formulas to possibly solve for d? then substitute it into the w=fd formula?
Physics--please check answer (multiple choice question)
Homework Statement
Two objects have the same mass. One is traveling twice as fast as the other. The work that must be done to stop the faster object compared to the work required to stop the slower object is:
a)two times greater...
Physics question -- Forces on a mass on horizontal surface
Homework Statement
A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of 100 N acts on the mass. How much work is done on the mass?
Homework Equations
I'm not...
Physics--please check answer
Homework Statement
A jet engine applies force of 300 N horizontally to the right against a 50 kg rocket. The force of air friction 200 N. If the rocket is thrust horizontally 2.0 m ,what is the kinetic energy gained by the rocket?
Homework Equations
I...