A stage light of mass 18 kg is raised from a loading platform 1.5 m above the floor. Its gravitational potential energy increases by 1620 J. Use g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg.
| Rigging point | Height above the floor in m\mathrm{m}m |
|---|---|
| 1 | 7.5 |
| 2 | 9.0 |
| 3 | 10.5 |
| 4 | 12.0 |
At which rigging point does the stage light stop?
Rigging point 1
Rigging point 2
Rigging point 3
Rigging point 4