1. An object moves 6 m in a downward direction. What is the work done by a 13 N

Question

1. An object moves 6 m in a downward direction. What is the work done by a 13 N force pushing on the object at 77 degrees. Be sure to state the sign and give only the numberical answer to the question. The problem is grading as if your answer is in joules. Answer is rounded to 1 decimal place. Work (in J) 2. An object moves 44 m in a direction to the right. What is the work done by a 17 N force pushing on the object at -159 degrees. Be sure to state the sign and give only the numberical answer to the question. The problem is grading as if your answer is in joules. Answer is rounded to 1 decimal place. Work (in J) 3. An object moves 9 m in a direction to the left. What is the work done by a 23 N force pushing on the object at -67 degrees. Be sure to state the sign and give only the numberical answer to the question. The problem is grading as if your answer is in joules. Answer is rounded to 1 decimal place. Work (in J) 4. An object moves 11 m in an upward direction. What is the work done by a 28 N force pushing on the object at 102 degrees. Be sure to state the sign and give only the numberical answer to the question. The problem is grading as if your answer is in joules. Answer is rounded to 1 decimal place. Work (in J)

Explanation / Answer

1) W=-13*6*sin(77)=76.00 J

2) W=-44*17*cos(21)=-689.3 J

3) W=-9*23*cos(67)=-80.88 J

4) W=11*28*sin(102)=301.27 J

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