the man carrying a suitcase walks on a horizontal surface work done by him with respect of gravity is
A)positive
B)zero
C)negative
D)both positive and negative
Plz answer this
Answers
Answered by
0
Answer:
A) positive
Explanation:
Because when he lifts up the suitcase to carry it it is positive and when he moves forward it is also positive.
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Answered by
0
Answer:
B.zero
Explanation:when object is displayed along the horizontal direction and the force of gravity act the perpendicular direction the two qualities of the force and displacement are mutually perpendicular is the work done by the gravity of an object is zero
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