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rock x is released from rest at the top of a cliff that is on earth. a short time later, rock y is released from rest from the same location as rock x. both rocks fall for several seconds before landing on the ground directly below the cliff. frictional forces are considered to be negligible. which of the following graphs correctly shows the vertical velocity of rock x as a function of time? take the positive direction to be upward.

Respuesta :

The velocity of an object in free fall increases downwards with time

  • Please find attached the correct graph showing velocity as a function time, with the positive direction to be upwards.

Reason:

The known parameters are;

Location where the rocks are released; Earth

The time at which rock Y is released = A few seconds after rock X is released.

Required:

To select the graph that shows the vertical velocity of rock, x, as a function of time.

Solution:

Let t represent the time after which rock x are released,  with the positive direction being upwards, we have;

  • The equation for the velocity of x is v = -9.81·t

With the above equation, the graph of the vertical velocity of rock x is plotted with MS Excel.

Learn more about the graphs of velocity of object in free fall here:

https://brainly.com/question/11363021

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