800-kg roller coaster moving down on a frictionless inclined plane at an inclined angle 25 degree.
Calculate
1. Weight ( force due to gravity)
2.Horizontal and vertical component of the weight
3.Normal force
4. Net force along the plane down
5.Acceleration

The rearrangement of particles in a physical change. hope this

Good moring let me you on this question the answer the electric force  have a good day ; )

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j