An engineer tests four mechanisms that move a camera platform along a track. In each test, the platform moves in the direction of a constant force.
| Test | Force in N\mathrm{N}N | Distance in m\mathrm{m}m |
|---|---|---|
| A | 8 | 3.0 |
| B | 20 | 4.0 |
| C | 48 | 2.0 |
| D | 12 | 0.20 |
Which test results in 24 J of work being done on the platform?
Test B
Test D
Test A
Test C