Question

Which of the following is an example of a negative action?

A.
an airplane lifting into the sky during takeoff

B.
soda being poured into a cup

C.
a roller coaster car going down a hill

D.
a plate falling off the kitchen counter

Answer 1

Negative action means negative work so,

In example A:- when airplane going towards sky force is in downward direction but it is going in opposite direction w.r.t. gravity hence ◆negative work◆

In example B:- when soda is putted in cup it is going down and covering distance in downward direction and gravitational force also applied on down hence,◆Positive work◆

In example C:-roller coaster going in direction of gravitation force applied Hence,◆positive work◆

In example D:- Plate falling in down direction and gravitational force also applied on downward direction hence, ◆positive work done◆

Here all work done are taken with respect to Gravitational force.

So option A is correct ✴️✴️✔️✔️

Answer 2

option A is right........