Question

Three forces act on the origin: ?⃗ 1 = 1.75 ?? and ?1 = 36.0°, ?1 = 114.3°, ?1 = 53.7°; ?⃗ 2 = (0.300?⃗ − 0.650?⃗ + 0.300?⃗⃗)??; ?⃗ 3 = (−1.25?⃗ + 0.950?⃗ − 3.00?⃗⃗)??. a) find the Cartesian vector of the resultant force ?⃗ ? = ?⃗ 1 + ?⃗ 2 + ?⃗ 3. b) find the magnitude of the ?⃗ ?. c) give the direction angles (??, ??, ??) of ?⃗ ?. d) find unit vectors for all four forces (?⃗ 1, ?⃗ 2, ?⃗ 3, ?⃗ ?).

Answer 1