In an experiment to measure the acceleration due to gravity, g two values, 9.96 m/s2 and 9.72 m/s2 , are determined. Find
(1) the percent difference of the measurements,
(2) the percent error of each measurement, and
(3) the percent error of their mean. (Accepted value: g = 9.80 m/s2 .)

we need some answer choices, or something like that

explanation:

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west