At the top of a giant swing on the high bar, a 50 kg gymnast’s velocity is 3 m/s, and he is 3.5 m high. What is the gymnast’s total mechanical energy (KE + PE+ SE) at this instant?

Total Mechanical Energy of the gymnast = 1940J = 1.94 kJ

Explanation:

Total Mechanical Energy = KE + PE + SE

Kinetic Energy,

Potential Energy,

Strain Energy,

Since there is no force of deformation, x = 0, SE = 0

Total Mechanical Energy = 225 + 1715

Total Mechanical Energy of the gymnast = 1940J = 1.94 kJ

the amount of current in the coil