Apackage of mass 5.30 slides a distance 1.41 down a long ramp that is inclined at an
angle12.3 below the horizontal. the coefficient of
kineticfriction between the package and the ramp is = 0.315
.
a ) calculate the work done on the package by friction.
b) calculate the work done on the package by gravity.
c) calculate the work done on the package by the
normalforce.
d) calculate the total work done on the package.
e) if the package has a speed of 2.25 at the top of the ramp, what is its speed after
slidingthe distance 1.41
down the ramp?

attach the statements so i can answer : )

chemical energy --> gravitational potential energy --> kinetic energy --> elastic potential energy --> gravitational potential energy

explanation:

when emma starts the hike, the chemical energy stored in her body is used to climb up the mountain, and so she gains gravitational potential energy (because at the end, she will be at a higher height h above the ground). then she goes bungee jumping: as she falls, this gravitational potential energy is converted into kinetic energy (because her speed increases as she falls down), until the point when the rope stretches, and she stops moving. at that moment, all the kinetic energy is converted into elastic potential energy due to the stretching of the rope. then, this energy is released because the rope returns to its natural length, and emma gains a small increase in altitude , so she gains some gravitational potential energy.