Another scheme to catch the roadrunner has failed and a safe falls from rest from the top of a 25.0 m high cliff toward Wile E. Coyote, who is standing at the base. While first notices the safe after it has fallen 15 m. How long does he have to get out of the way? 0.36 s 1 s 0.51 s 2.26 s 1.75 s Question 4 HELP! 1 pts In one dimension, a particle's position as a function of time is given by x(t) = (0.8 m/s) t - (4.7 m/s) t. What is the magnitude of the acceleration of the particle in units of m/s? Enter a number with one digit behind the decimal point.