1. The problem statement, all variables and given/known data A box of mass M= 1 kg rests at the bottom ofa frictionless plane inclined at an angel theta= 20 degrees. The box is attached to a string that pulls with a constant tension T=5 N. What is he power in Watts being delivered by the tension T as the block reaches x=50 cm 2. Relevant equations P= dW/dt w=Fd F=ma 3. The attempt at a solution w= (5N)(.5m)=2.5 J Then to find the change in time I used kinematics, and to get acceleration I used newton's second law. Net force= T-mgsin(theta)= 5N-(1kg)(9.81 m/s^2)sin(20)=1.644782394 N F/m=a m=1 a=1.644782394 v=at r=.5at^2 then I set the position equation equal to .5m to get t .5=.5at^2 sqrt(1/a)=t =.7797327501 seconds the from here I just put W/t W/t=3.206226748=P The correct answer is 6.41 Could someone please help me get going in the right direction. Thank you.