I don't understand how to do 4b) and then 5 and 6 I'm so lost

4. {qu2) A particle moving in a straight line travels 5(t) meters in 15 minutes, where S[t) = sin (2t). {don't forget to iclude units in your answers.) (a) Find the velocity and acceleration as a function of t. (b) Does the particle moving forward or moving back at the time given below? Also determine whether the particle speeding up or slowing down at the following times. Show all your work. Justify your answer completely. [a]t= (mt:E 5. {7m} A plane ying horizontally at an altitude of 10 miles and a1. a % speed of 2001:1191: passes over a radar station. How fast is the 10 mites a: distance between the plane and the station changing after 1.5 hours? sia on 3. {7pc} Water is leaking out of a cylindrical tank. The base and top of tank has radius 20ft. At what rate the amount of water in the tank is changing if level of water is decreasing at the rate of 1.2 fit/min