hi, i need answers on the questions below. please provide explanation or solution if needed so i can better understand it. thank youu.

36. An object is at x = -10 m moving at a constant velocity of 10 m/s. What would be the position of the body after 10 seconds? A. x =100 m B. x = 90 m C. x = 80 m D. x = 70 m E. No Answer37. Please refer to the following vectors: A = 6i + 2j - 3k B = 3i - j - 2k C= -i+ j - 4k D = j - 3k E=-i+ 2k F = -5k G = 2i H = -3j 1 = -4i +4j (A)Find the projection of vector C on vector D. A. 5 B. 11 C. 13 D. 25 E. No Answer\f38. The motion of a bicycle rider moving in a straight line is shown in the graph below. What would be the acceleration of the rider at 5 s? 12 Velocity (m/s) 10 10 19 12 13 Time (s) A. 3.0 m/s^2 B. 5.0 m/s*2 C. 2.0 m/s*2 D. 4.4 m/s*2 E. No Answer39. A ball is moving along a circular track. What can be said about the orientation of the velocity and acceleration vectors? A. Parallel B. Anti-parallel C. Perpendicular D. Out of phase by 180 degrees E. No Answer40. Please refer to the following vectors: A = 6i + 2j - 3k B = 3i - j - 2k C =-it j - 4k D = j - 3k E =-i+ 2k F = -5k G = 2i H = -3j 1 =-4i +4j (A) Two airplanes started drifting away from the origin along the directions of displacement vectors {8} km and {E} km respectively. If vectors B and E are their position vectors in rectangular coordinate system after some time t, what will be their separation distance in kilometers? A. 4.17 km B. 5.74 km C. 6.78 km D. 7.23 km E. No