Types of forces: at a distance or through contact (4841)

, por F_y_Q

Indicate which of these phenomena are produced by forces at a distance and which are produced by forces through contact:

a) The motion of a train due to magnetic levitation.

b) The deformation of a spring when you attach a weight on it.

c) The skidding of a car on a pool of water.

d) The formation of the aurora borealis.

e) The motion of a cupboard when you push it.


SOLUCIÓN:

Contact forces: b) and e).

Distance forces: a), c) and d).