What are the four common types of struck-by hazards?
O
Flying objects, falling objects, swinging objects and rigging objects
O
Flying objects, falling objects, swinging objects and rolling objects
Falling objects, flying objects, handling materials and rigging objects
Caught between objects, swinging objects, flying objects and falling
objects

Flying objects, falling objects, swinging objects and rolling objects

Explanation: The four common types of struck by hazard are: Struck-by Flying objects, Struck-by falling objects, Struck-by swinging objects and Struck-by rolling objects. Struck-by hazard occur when a worker comes into forcible contact with a flying, falling, swinging or rolling object. However, these type of hazard continue to cause many fatalities and serious injuries every year and some even leads to the eventual death of construction workers. A struck by hazard is caused by forcible contact or impact between the injured person and an object or piece of equipment.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.