In 1934, the wind speed on mt. washington in new hampshire reached a record high. suppose a very sturdy glider is launched in this wind, so that in 45.0 s the glider reaches the speed of the wind. if the glider undergoes a constant acceleration of 2.29 m/s2, what is the wind’s speed? assume that the glider is initially at rest.

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".