A fighter plane is chasing another plane, when it opens fire then it's speed
A increases
B decreases
C Remains same
D Becomes double
Answers
Answer:
The answer to the question- "A fighter plane is chasing another plane, when it opens fire then it's speed" is-
B. decreases
Explanation:
If we consider, that the chasing plane suppose opens fire with a machine gun. In this case, plane is expelling mass in forward direction so a force will appear in the opposite direction to the motion of bullet that will decrease the speed of plane each time he makes a shot.
Since, we know that, the engines are still active then the plane's speed will oscillate which means to and fro motion. And, as the thrust of the engines remains constant, but, the plane's mass decreases as after the cessation of the shots ,the speed increases of the plane and it will be greater than the speed which was before the shots.
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