There are four coins with tails up. Turning any three coins over counts as one move.
How many moves does it take to get all coins to show heads if turning three coins at a time counts as one move?

38.6°

step-by-step explanation:

resultant is 10 pound

smaller force = 8 pound

angle formed = tan⁻¹(

                        =tan⁻¹(

                          =tan⁻¹(0.8)

                        =38.6°

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)