Question

explain the following terms with one example each
a) positive work
b)zero work​

Answer 1

Answer:

HERE IS YOUR ANSWER

Explanation:

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.

Zero Work  : Direction of force and Direction of Motion are at right angle (angle of 90 degrees)

Force is applied but there is no displacement.

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Answer 2

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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.

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.

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