3 years ago

Displacement time squared graph

1 answer:

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If distance versus time is a straight line then Free-Fall is at a constant velocity and the slope of the graph measures that velocity. If distance versus time-squared is a straight line then Free-Fall is at a constant acceleration and the slope of the graphmeasures one-half of that acceleration.

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A man of weight Wman is standing on the second floor and is pulling on a rope to lift a box of weight Wbox from the floor below.

slavikrds [6]

Answer:

Explanation:

See the attached figure . See the forces acting on man pulling up the box .

Man is stationary so net force acting on man is zero .

T + R = Wman

R is the reaction force of the ground of second floor .

R = Wman - T