00:01
Hello guys, in this problem, we have an elevator.
00:04
The elevator is speeding up while moving downward.
00:08
Hence, the acceleration of the elevator is downward, and it is given that the magnitude of the acceleration is 10 meters per second square.
00:20
Now, inside the elevator, we have a weighing scale, a spring scale, and the mass attached to the free end of the, spring scale is 10 kilograms.
00:39
We have to find out the spring scale reading.
00:41
For that, we need to draw the free body diagram of the mass.
00:46
If you draw the free body diagram, the forces acting on the mass are the weight in the vertical downward direction, that is mass times acceleration due to gravity.
01:00
In upward direction, the spring force exerted by the spring scale...