What are the answers please

That looks like a geometric series with first term a1=100, common ratio r=1/2, or, as they seem to want to put it, dividing by two.

100, 50, 25, 12.5, 6.25,  divide by 2, it's a geometric sequence.

faster, im not sure why but i know it is faster

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°