- #1
TheDudeTR
- 5
- 0
- Homework Statement
- a concrete block released from rest
- Relevant Equations
- F=ma
this is the question and solution given in the book
solution i made below. only difference is i took x as opposite side that given in the book and wrote F=ma equation that way. as a result the left side of equation (3) directly turned negative. that caused difference in result but why? i mean instinctly in these kind of questions i am tend to put positive axis towards sense of movement. can you please help me?
solution i made below. only difference is i took x as opposite side that given in the book and wrote F=ma equation that way. as a result the left side of equation (3) directly turned negative. that caused difference in result but why? i mean instinctly in these kind of questions i am tend to put positive axis towards sense of movement. can you please help me?