8. Compute the measured kinetic energy of the cart from the measured velocity and mass (1/2mv2) and record in the data table 9 . Using the conservation of energy, calculate what the kinetic energy of the cart will be at the end of the track ad record this in Data Table #2 Mass of Cart 510.5 KE ( J ) % error Ax (m) Speed at Potential Energy | KE (J) end of ramp spring (1/2kAx2) (1/2mv2) (1/2mv2) (m/s ) Measured Calculated 1 Q. 18 m Q : 7 433 2 0. 23m 0. 8073 3 A 0.28m 1. 052 Q.33m 1. 37] Part C: Energy conversion from multiple sources In this part of the experiment, we will combine the knowledge from Parts A & B to assess conversion of energy from multiple sources of potential (Gravitational and Spring) into kinetic energy. AX 1212 +82 = 02 Sin-'s'169 121 7.6 121 16cm 30 Figure 3 12 Cm 1. Create the setup in Figure 3 by placing the dynamic track at an angle. You will be keeping this incline constant 2. Record the angle 0 = ]. Co 3. The starting position of your cart will be at the top of the track where the spring is at its equilibrium point (unstretched). 4. Click to start data collection; release the cart after the Motion Detector starts to click. Move your hand out of the Motion Detector path quickly. 5. From your measurements, find the velocity of the cart at approximately 30cm from your start position. Record this value Velocity of the cart @ 30cm from start = 0.6541 velocity midpoint m / s 6. For the same trial, record the maximum distance the spring was stretched; Ax = measured mig O+might s x (AX ) = = - mv? + might + 5, k (Ax ).2 m