3. [0/4 Points] DETAILS PREVIOUS ANSWERS OSUNIPHYS1 3.P.086. MY NOTES ASK YOUR TE A particle moves along the x-axis according to the equation x(t) = 2.4 - 4.212 m. What are the velocity (in m/s) and acceleration (in m/s ) at t = 3.2 s and t = 6.2 s? t = 3.2 s velocity 40.6 x m/s acceleration 40.6 * m /s 2 t = 6.2s velocity m/s acceleration m /s 2 Additional Materials Reading 4. [1/2 Points] DETAILS PREVIOUS ANSWERS OSUNIPHYS1 3.P.090. MY NOTES ASK YOUR An ambulance driver is rushing a patient to the hospital. While traveling at 75 km/h, she notices the traffic light at the upcoming intersections has turned amber. To reach red, she must travel 55 m in 2.3 s. (a) What minimum acceleration (in m/s2) must the ambulance have to reach the intersection before the light turns red? (Enter the magnitude.) 2.68 m / 5 2 (b) What is the speed (in km/h) of the ambulance when it reaches the intersection? * km/h Additional Materials Reading