#474

eads to the theory of special relativity. (Physics 1-D) *This means that v is much smaller than c, or (v/c) is much smaller than 1. 474 At timet = 0, car A starts from rest, and accelerates with constant acceleration 8.00 m/sec. Att = 0, car B is 30m ahead of car A, and is moving with constant velocity 40 m/sec. At time t = 2.00 sec, B notices A overtaking and starts to accelerate at constant acceleration 6.00 m/sec. When and where (if at all) do A and B meet? (Take the origin for measuring the distances at A's initial position.) 475 (a) A physicist runs straight south at velocity 8 mi/hr. She decides to change her course so that the wind is at her back (directly from the north, relative to the earth) at velocity 20 mi/hr. She decide to change her course so that the wind will striker her right side (i.e., at 90 relative to her motion By what angle must she change her direction of motion