Explain positive, nagative and zero work with example
Answers
Answer:
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Explanation:
Positive work: when force and displacement are in the same direction, the work performed on an object is said to be positive work.
- Example: When a body moves on the horizontal surface, force and displacement act in the forward path. The work is done in this case known as Positive work.
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.
- Example: When we hold an object and walk, the force acts in a downward direction whereas displacement acts in the forward direction.
POSITIVE WORK : the work done on an object is said to be positive work when force and displacement are in same direction.
example: When an object moves on horizontal surface,force and displacement acts in forward direction. So,work done is positive.
NEGATIVE WORK: The work done is said to be negative work when force and displacement are in opposite direction.
The work done is said to be negative work when force and displacement are in opposite direction.example: When an object is thrown upwards,the force CTS in downward direction whereas displacement acts in upward direction.
ZERO WORK: The work done is said to be zero work when force and displacement are perpendicular to each other or when either force or displacement is zero.
The work done is said to be zero work when force and displacement are perpendicular to each other or when either force or displacement is zero.example: When we hold an object and walk,the force acts in downward direction whereas displacement acts in forward direction.