Problem 4 (Figure B). A mass of 2 kg is projected with a speed of 3 m/s up a plane inclined 20° with the horizonal. After traveling 0.8 m, the mas comes to rest. (a) Determine the coefficient of kinetic friction. (b) Determine the speed of the block when it returns to it starting position. Draw 2 x 9.8 19.6 N 20° N Figure B "N

Problem 4 (Figure B). A mass of 2 kg is projected with a speed of 3 m/s up a plane inclined 20° with the horizonal. After traveling 0.8 m, the mas comes to rest. (a) Determine the coefficient of kinetic friction. (b) Determine the speed of the block when it returns to it starting position. Draw 2 x 9.8 19.6 N 20° N Figure B "N

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Problem 4 (Figure B).
A mass of 2 kg is projected with a speed of 3 m/s up a plane
inclined 20° with the horizonal. After traveling 0.8 m, the mas:
comes to rest.
(a) Determine the coefficient of kinetic friction.
(b) Determine the speed of the block when it returns to it
starting position.
Draw
2 x 9.8 19.6 N
20°
Figure B
PN

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Step 1: Determining the given data

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Step 2: Finding acceleration of the block while travelling upwards

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Step 3: Finding normal reaction & frictional force

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Step 4: Finding coefficient of friction

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Step 5: Finding acceleration when block is moving downwards

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Step 6: Finding velocity at end point

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