Figure shows an overhead view of a 0.0250 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force F1 has a magnitude of 6.00 N and is at θ1 = 30.0o. Force F2 has a magnitude of 7.00 N and is at θ2 = 30.0o. In unit-vector notation, what is the third force if the lemon half

(a) Is stationary,

(b) Has constant velocity v = (13.0i ?? 14.0tj) m/s, and

(c) Has varying velocity v = (13.0ri ?? 14.0tj) m/s2, where t is time?

Transcribed Image Text:

Го.