Câu hỏi
14. What is the net force acting upon an object which is subjected to the following forces? 3 Newtons South 3 Newtons North 5 Newtons East 7 Newtons West 2 Newtons West 18 Newtons North 6 Newtons West 18 Newtons South
Giải pháp
4
(366 Votes)
Shawn Ortiz
Elite · Tutor for 8 years
Answer
10 Newtons West
Explanation
1. Combine forces in the North-South direction Net North-South force = (3 N North + 18 N North) − (3 N South + 18 N South) = 21 N − 21 N = 0 N 2. Combine forces in the East-West direction Net West force = (7 N + 2 N + 6 N) − 5 N East = 15 N − 5 N = 10 N West 3. Determine net force magnitude and direction Only 10 N West remains; no North-South component.