Question

David uses a falling mass to split wooden logs. The 5kg mass slides down the rod and hits the metal blade. The force on the blades splits the log.

To lift the mass David uses energy stored in his muscles. What energy transfer occurs when David’s muscles lift the mass?

From ___________________ energy in his muscles to gravitational potential energy of the mass.
a) Chemical potential energy
b) Mechanical kinetic energy
c) Thermal energy
d) Nuclear energy

Answer 1

The energy transfer occurs from Chemical potential energy in David's muscles to gravitational potential energy of the mass.

Step-by-step explanation:

The energy transfer that occurs when David's muscles lift the mass is from Chemical potential energy in his muscles to gravitational potential energy of the mass.