Question

define negative work an give example​

Answer 1

Answer:

Negative work: Negative work is performed if the displacement is opposite to the direction of the Force applied. Example: Work was done the gravity on a rocket going perpendicular upwards. Zero work: When force and displacement are perpendicular to each other, or when force or displacement is zero.

Explanation:

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Answer 2

Answer:

Negative work is performed if the displacement is opposite to the direction of the Force applied. Example: Work was done the gravity on a rocket going perpendicular upwards. Zero work: When force and displacement are perpendicular to each other, or when force or displacement is zero.

Example-In pulling a box of books along a rough floor at constant velocity, I do positive work on the box, that is I put energy into the system. The force of friction opposes the displacement (always), and does negative work.

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