I dont know which angle to use,,,for example on this problem: four forces are acting on a hot-air balloon: F1=2280.0 N up, F2=2250.0 N down, F3= 85.0 N west and F4= 12.0 N east. What is the precise direction of the net external force on the balloon. The answer should be about 23.3 degrees above West,,,,,please show me how to do this problem...thanks!!
2006-12-11 10:35:11 · 3 answers · asked by need4speed 2 in Science & Mathematics ➔ Physics
Net up-down = 2280 - 2250 = 30 up
Net east-west = 12 - 85 = -73 east = 73 west
Total = sqrt(30^2+73^2), arctan (30/73) = 79.924N, 22.34degrees
2006-12-11 10:49:02 · answer #1 · answered by feanor 7 · 0⤊ 0⤋
stress = mass x acceleration F=ma a) 8.a million=3.5a a=2.3 m/s^2 b) is comparable. c) anticipate the acceleration is persevering with, then: s=0.5at^2 80 one.8/a hundred=0.5a0.6^2 a=4.fifty 4' m/s^2 F=ma F=a million.7*4.fifty 4'=7.725' N
2016-10-05 04:46:59 · answer #2 · answered by Erika 4 · 0⤊ 0⤋
yeah I agree with the guys answer above.
2006-12-11 10:58:14 · answer #3 · answered by justin 2 · 0⤊ 0⤋