Mr Schecter, a baseball player in college, throws a "Large" size chicken egg, giving it as much kinetic energy as he can. Even with a throw at about 90 miles per hour (40 m/s) the kinetic energy is only 45 J. (An egg weighs only 5% of a kilogram.) A bed sheet is set up to stop this egg slowly by doing the same amount of work as the kinetic energy. The sheet is able to push with a force of 30. N. How far does the sheet have to stretch while it catches the egg?

Mga halaman/punong ornamental na di namumulaklak

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

Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving