college phys 1111... neeed help!! 1. The problem statement, all variables and given/known data A space probe is desperately trying to escape the gravitational pull of a massive planet. After a final blast of its thrusters, the probe has a velocity of 2940 m/s away from the planet. Later, the probe is 176.4 km closer to the planet than it originally was, with a velocity of 8820 m/s toward the planet. You are to find (assume constant acceleration): a) the acceleration (magnitude and direction) b) How far beyond its starting point the probe got. c) How much time elapsed between initial and final positions. I don’t understand how to approach this problem…. How do I find acceleration when I don’t know the time?