Please help!! Need Physics help only if you have experience with Physics. b) The total mass of the cyclist and bicycle is 70 kg and the total resistive force acting on them is 40 N. The initial speed of the cycle is 8.0 m s–1. The cyclist stops pedaling and the bicycle comes to rest.

(i) Calculate the magnitude of the initial acceleration of the bicycle and rider.
(ii) Estimate the distance taken by the bicycle to come to rest from the time the cyclist stops pedaling.
(iii) State and explain one reason why your answer to b) is an estimate

Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s