3√3/2 "When a pendulum that is 0.5 m long swings back and forth, its angular displacement, e, in radians, from rest , where r is the time, in seconds. At what time(s) during the first 4 s is the pendulum displaced 1 cm vertically above its rest position? (Assume the pendulum is at its rest position at r= position is given by 0=- 0.) (4 points) 49 cm 50cm ½ sin (1/1). v Sin (½½ (4) solving for t =4 Sin (6.2832) = 6.2474 (6.2832) 1.5545 1 cm A skateboard ramp is built with an incline angle of. If the base of the ramp is I m in length, determine the exact height of the ramp. Include a diagram and show all work algebraically. (4 points) 5/12 Im Tan 2- tan 12 = O tan12 1 0 = 0.5774m 3