A block of 3 kg, initially at rest, is pushed uphill on an incline of 30 degrees over a distance d,. The pushing force is directed horizontally and has a constant magnitude of 35 N. The surface of the incline offers a constant kinetic friction (µk = 0.3).

Elements Of Electromagnetics
7th Edition
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Author:Sadiku, Matthew N. O.
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A block of 3 kg, initially at rest, is pushed uphill on an incline of 30 degrees over a distance d,. The
pushing force is directed horizontally and has a constant magnitude of 35 N. The surface of the incline
offers a constant kinetic friction (µk = 0.3).
a) Make a FBD for the block and use Newton's 2nd law to find the normal force and the friction.
b) Use work-energy approach to calculate how much farther the block moves uphill after we
stop pushing (this distance (d,) should be expressed as a proper or improper fraction of the
"pushing distance"(d,) – I am not asking for a number!!). Take as your SYSTEM:
BALL+INCLINE+EARTH. Make sure to make lists of all the forces that are relevant and to
calculate the work done by each of them, as seen in the lectures.
Transcribed Image Text:A block of 3 kg, initially at rest, is pushed uphill on an incline of 30 degrees over a distance d,. The pushing force is directed horizontally and has a constant magnitude of 35 N. The surface of the incline offers a constant kinetic friction (µk = 0.3). a) Make a FBD for the block and use Newton's 2nd law to find the normal force and the friction. b) Use work-energy approach to calculate how much farther the block moves uphill after we stop pushing (this distance (d,) should be expressed as a proper or improper fraction of the "pushing distance"(d,) – I am not asking for a number!!). Take as your SYSTEM: BALL+INCLINE+EARTH. Make sure to make lists of all the forces that are relevant and to calculate the work done by each of them, as seen in the lectures.
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