Complete Question
The complete question is shown on the first uploaded image
Answer:
Part A
The velocity of Tarzan is

Part B
The percentage loss of kinetic energy is %-loss
%
Part C
The speed would be exactly the same
Step-by-step explanation:
From the question we are told that
The mass of Tarzan is

The height of the cliff is

From the law of conservation of energy

Where PE is the potential energy of Tarzan at the top of the cliff which is mathematically represented as

KE is the kinetic energy of Tarzan as he swings toward jane and is mathematically represented as

So

=>

Substituting values

=>


From the question we are told that the actual velocity of Tarzan is

The kinetic energy at the the velocity is mathematically represented as

Substituting values

The kinetic energy at
is

=>

Now the percentage loss of kinetic energy is mathematically evaluated as
%-loss

substituting values
%-loss

%-loss
%
The mass of Tarzan does not affect the speed because looking at this equation

We see that the velocity of Tarzan is not dependent on the mass of Tarzan