Which of the following sentence is in present perfect tense ?
(A) The students have finished this work
(B) They have been living in Banaras since 2001
(C) He was not playing
(D) I came after he had gone
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Explanation:
.In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
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