Find the work done by a 50-N force acting in the direction of the vector (2,1,5), which moves a object from A (2,1,5) to B (3 ,-1,2), where the distance is in meters. Show Proj(x onto y) if: Mark: 6 Explain why knowing that someone lives 5 km from the CN Tower is not sufficient to identify their exact position. Mark: 4 Explain why 4 non-collinear distinct points may or may not be coplanar. What about 3 distinct points?Why is the expression (a x b) x c defined but (a . b) . c is not?An airplane heads due south with an airspeed of 480 km/h. Measurements from the ground indicate the planes ground speed is 528 kin/h at south 15 east. Calculate the Wind speed and direction. Mark: 11 Let A = [1,2,3] and B = [-1,4,-7]. Find A x B. Verify that a x b is perpendicular to both a and b. Find A 0 B. Find ij (A onto B). Find A B. Find 2A + 6B. Find if a linear combination of a and b can be made to make vector t-hsDP-P 9'!\