Asked by KC

Calculate the work done by the applied force accelerating a 2 kg object at 3 m/s/s over 4 m if there is a 2.5 frictional force of resistance. I calculated using F=ma=6N; then net force = 6N-2.5N=3.5 N so W=fd=14J. Did I do this correctly? Thanks
Answered by bobpursley
work done=2.5*3 + 2*3*4 I get more than you. You did the accelerating force only, you have to add the force working against friction
Answered by KC
Help!I'm really lost on this one.
Answered by bobpursley
correction: I mistyped the distance on friction.

Workdone=2.5*4+2*3*4 joules.

There are no AI answers yet. The ability to request AI answers is coming soon!