Navig Falling Objects ** There is a 251 m high cliff at Half Dome in Yosemite National Park in California. Suppose a boulder breaks loose from the 6 top of this cliff. (Define the positive direction to be upward.) 15 Part 1 Finish How fast will it be going when it strikes the ground? Part 2 Assuming a reaction time of 0.300 s, how long will a tourist at the bottom have to get out of the way after hearing the sound of the rock breaking loose (neglecting the height of the tourist, which would become negligible anyway if hit)? The speed of sound is 335 m/s on this day. Access OpenStax College Physics Access OpenStax College Physics for APO Courses