answer asap with explanation

6. Determine the incorrect vector property. a) wxu =-uxw b) - v . u = -|v . u c)u-w=-wtu Hiptil gniwollol sits to splay siff spirmetal 7. Vector w represents the wind with a magnitude of 25 km/h coming from the direction northeast. Find the vector that is equivalent to the vector w a) N450E at 25 km/h b) $450E at 25 km/h c) $45W at -25 km/h d) $450W at 25 km/h 8. Find the best representation of the torque produced by a cyclist exerting a force F = [5, 4, 10]N on the shaft-pedal d = [2, 5, 5]cm long. a) 34.8 N . m b) [-30, -5, 17] c) 34.8 N . cm d) 1214 N . cm 9. If a = [-2, 3, 6] and c = [3, m, -9], find m so that a and c are parallel. a) m = b) m = 20 c) m = 2 d) none of these N