HELP! block is released from rest and slides down a frictionless ramp inclined at 30' from the horizontal. When the block reaches the bottom the block-Earth system has mechanical energy Eo The
experiment is repeated, but now horizontal and vertical forces of magnitude F are exerted on the block while it slides, as shown above. When the block reaches the bottom, the mechanical energy
of the block-Earth system
A) is greater than Eo
B)is equal to Eo
C)is less than Eo
D)cannot be determined without knowing

the horizontal and vertical force acting on it consist a net force on the inclined direction (30degrees below the horizontal) you can tell by the length of the horizontal component (try to see the 30degree incline as horizontal, because that's the direction of the displacement). net work done on the system results in an increase in energy. i hope this can help :D, i'm also taking the ap physics 1 exam tommorow.

onyebuchinnaji onyebuchinnaji · Answer 2 · 2022-01-13T12:59:11+01:00

When the block reaches the bottom, the mechanical energy of the block-Earth system is greater than Eo.

The given parameters:

Inclination of the ramp, θ = 30⁰

The work - done on the block is calculated as follows;

[tex]W = F d \times cos(\theta)[/tex]

where;

d is the displacement of the block

When the block reaches the bottom, the displacement increases.

Based on work-energy theorem, as the work done increases, the mechanical energy increases as well.

Thus, when the block reaches the bottom, the mechanical energy

of the block-Earth system is greater than Eo.

Learn more about work-energy theorem here: https://brainly.com/question/22236101