the object will stop when its speed is decreased to zero
decrease is not change. exact_zero_divisor is not zero_divisor. trivial_zero_divisor is zero_divisor. speed_of_light is constant. terminal_velocity is not speed. acceleration is not speed. speed is not motion. speed_of_light is not constant. trivial_zero_divisor is not zero_divisor. speed is not rate_of_motion.