Phy121

Part A The velocity of an object is given by the expression v(t) = 3.00 m/s + (2.00 m/s')t2, where t is in seconds. Determine the position of the object as a function of time if it is located at x = 1.00 m at time t = 0.000 s. O x(t) = (2.00 m/s)t O x(t) = 0.67 m O x(t) = 1.00 m + (3.00 m/s)t + (0.67 m/s3)+ 3 O x(t) = (2.00 m/s)t + 1.00 m O x(t) = (3.00 m/s)t + (0.67 m/s3)+ 3Part A An object has a position given by 7 = [2.0 m + (3.00 m/s)t] i + [3.0 m - (5.00 m/s')t?] j , where quantities are in SI units. What is the speed of the object at time t = 2.00 s? O 24.3 m/s 16.2 m/s O 28.3 m/s O 20.2 m/s O 12.1 m/s Submit Request AnswerPart A An object has a position given by 7 = [2.0 m + (1.00 m/s)t] i + [3.0m -(1.00 m/s')t2] j, where all quantities are in SI units. What is the magnitude of the acceleration of the object at time = 2.00 s? O 2.00 m/s2 O 2.40 m/s2 O 0.00 m/s2 O 1.60 m/s2 O 1.00 m/s2 Submit Request AnswerA hockey puck slides off the edge of a table with an initial velocity of 21.1 m/s and experiences no air resistance. The height of the tabletop above the ground is 2.00 m. What is the angle below the horizontal of the velocity of the puck just before it hits the ground? O 72.6' O 77.2" O 16.50 O 22.8' O 31.8 Submit Request AnswerPart A An aircraft performs a maneuver called an "aileron roll." During this maneuver, the plane turns like a screw as it maintains a straight flight path, which sets the wings in circular motion. If it takes it 23 s to complete the circle and the wingspan of the plane is 12.3 m, what is the acceleration of the wing tip? O 2.2 m/s2 O 5.7 m/s2 O 0.46 m/s2 O 0.18 m/s2 Submit Request