Student 10:57 PM Tue Sep 6 X Module 5: Kinematics in 2D v, (cm/s) v, (cm/s) 40 30 VE 20- 10 -1 (s) 1) A rocket-powered hockey puck moves on a horizontal frictionless table. The figure below shows the graphs of v. and v,, the x- and y-components of the puck's velocity. The puck starts at the origin. a) In which direction is the puck moving at t = 3 s? Give your answer as an angle from the x-axis. b) How far from the origin is the puck at 5 s ? 40 30- 20- 10- 0 0 1 2 3 Participation 5 4 5 0 0 1 2 3 4 September 3, 2021 -1 (s) 5 d) What is the y component of the car's acceleration vector at 8.0 s? ZOOM 2) A spaceship maneuvering near Planet Zeta is located at r' (600i^-400j^+200k^)x10 km, relative to the planet, and traveling at v=9500i^ m/s. It turns on its thruster engine and accelerates with a (40i 20k) m/s for 35 min. What is the spaceship's position when the engine shuts off? Give your answer as a vector measured in km. Express your answer in terms of the unit vectors i^, j^, and k^. 3) You have a remote-controlled car that has been programmed to have velocity v =((-3)^+(21-j^) m/s, where L is in s. At 1-0 s, the car is at r'n-(3.0^-2.0j^)m. a) What is the x component of the car's position vector at 8.0 s? b) What is the y component of the car's position vector at 8.0 s? c) What is the x component of the car's acceleration vector at 8.0 s?