43
Two points on a velocity time-graph have coordinates (5s, 10ms-1) and (20s, 20ms-1). Calculate the mean acceleration between the two points
- A. 0.67ms-1
- B. 0.83ms-1
- C. 1.50ms-1
- D. 2.00ms-1
44
The magnitude of the resultant of two mutually perpendicular forces, F1 and F2 is 13N, if the magnitude of F1 is 5N, what is the magnitude of F2?
- A. 2.6N
- B. 6.0N
- C. 12.0N
- D. 18.0N
45
Which of the following is a set of vectors?
- A. force, mass and moment
- B. acceleration, velocity and moment
- C. mass, weight and density
- D. mass, volume and density