Problem 7. (1 point) 1. A particle moves along a straight line with velocity v(t) = t cos $ meters per second after t seconds. Find how far it travels during the first 3 seconds. O A. None of these OB. 9 sin(1) - 9 cos(1) - 9 O c. 9sin(1) + 9 cos(1) + 9 OD. 9 sin(1) + 9 cos(1) - 9 O E. 9 sin(1) + 9 cos(1) Problem 8. (1 point) Enter "T" for each true statement and "F" for each false statement. 1. The Polar equation " = 26050 + 4sing for 0