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Hold your open hand at shoulder-height, and have your associate carefully place a Bowling ball in your hand. Now allow the hand and bowling ball to descend slowly to the floor. Your hand has done 'negative work', equal to the (weight of the ball) times (distance it descended).
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When work is positive and when is negative?
when work is positive and when playing is negative
Why work done on the system is negativeand it is positive when its done by the system?
Oh, dude, it's like this: when work is done on the system, it's like the system is just chilling and getting stuff done to it, so it's negative because it's like, "Ugh, why are you messing with me?" But when the system does work, it's like, "Yeah, I got this," so it's positive because it's like, "I'm in control, baby!" So, yeah, that's why it's negative when done on the system and positive when done by the system.
Can work positive or Negative in physics how?
Yes Work can be positive or Negative.
How can you have both positive and negative work at the same time?
Very interesting approach! When Paul presses a spring then work done by Paul is positive and work performed by spring is negative. As per scalar product we have to use cos@ If @ is acute then cos @ is +ve and if @ is obtuse then it becomes -ve As force applied and displacement are in the same direction as in the case of Paul's attempt then work becomes positive But in case of spring's opposing force the displacement is in opposite direction and so work is negative
What are positive and negative work ethics?
what is positive and negative
