With fuel prices for combustible engine automobiles increasing, researchers and manufacturers have given more attention to the concept of an ultralight

car. Using carbon composites, lighter steels and plastics, a fuel-efficient car

can be manufactured at 540 kg. How much less does an ultralight car weigh

compared to a 1450-kg Honda Accord (2007)?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

What is special about a dc circuit ?

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