In reference frame R, during the interval At,: • is the displacement (i.e., change in position) of the block upward, downward, or zero? Explain. (Base your answer on your velocity arrow in part c.1.) • is the net force on the block upward, downward, or zero? Explain. (Base your answer on your acceleration arrow in part c.i.) • is the work done on the block by the net force positive, negative, or zero? Explain. (Base your answer on your answers to the previous two questions.)
In reference frame R, during the interval At,: • is the displacement (i.e., change in position) of the block upward, downward, or zero? Explain. (Base your answer on your velocity arrow in part c.1.) • is the net force on the block upward, downward, or zero? Explain. (Base your answer on your acceleration arrow in part c.i.) • is the work done on the block by the net force positive, negative, or zero? Explain. (Base your answer on your answers to the previous two questions.)
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Question (iv)
Transcribed Image Text:iv. In reference frame R, during the interval AL
* is the displacement (i.e., change in position) of the block upward, downward, or zero?
Explain. (Base your answer on your velocity arrow in part c.i.)
• is the net force on the block upward, downward, or zero? Explain. (Base your answer
on your acceleration arrow in part c.i.)
• is the work done on the block by the net force positive, negative, or zero? Explain.
(Base your answer on your answers to the previous two questions.)
Make sure your result for the work done on the block by the net force is consistent with
your answer to part c.iii.
Transcribed Image Text:c. Consider reference frame R, moving downward with
constant speed v.
In reference frame R:
Direction of
acceleration
Direction of
velocity
of block
i. In the spaces provided, draw arrows to indicate
the direction of the velocity and the acceleration
of the block in reference frame R during the
interval At,. Explain.
of block
Velocity if the block increases from 0 to V0
Acceleration of the block is acting in the
upward direction
11.
In reference frame R:
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