Hello i need help with the following questions please and thank you.

laDle m - - the most recent version of this software. A cat's crinkle ball toy of mass 15 g is thrown straight up with an initial speed of 3 m/s. Assume in this problem that air drag is negligible. (a) What is the kinetic energy of the ball as it leaves the hand? (b) How much work is done by the gravitational force during the ball's rise to its peak? (c) What is the change in the gravitational potential energy of the ball during the rise to its peak? (d) If the gravitational potential energy is taken to be zero at the point where it leaves your hand, what is the gravitational potential energy when it reaches the maximum height? (e) What if the gravitational potential energy is taken to be zero at the maximum height the ball reaches, what would the gravitational potential energy be when it leaves the hand? (f) What is the maximum height the ball reaches? .2 Conservative and Non-Conservative Forces & * force F (3:) : (3.0/33) N acts on a particle as it moves along the positive x-axis. (a) How much work noes the force do on the particle as it moves from :1: : 2.0 I11 to :1: : 5.0 I11? (b) Picking a convenient reference point of the potential energy to be zero at :r: : 00, find the potential energy for this force. 25. A force F (3:) : (51.0332 l 7.03:) N acts on a particle. How much work does the force do on the particle as it moves from :r: : 2.0 m to :r: : 5.0 m? 26. ind the force corresponding to the potential energy U (:13) : a/:I: l fir/$2. E Ch. 8 Problems - U X ( ) C' i openstaxorg/books/universityphysicsvolume1/page... Q |_,I-'-> fr *- EJ' I] Fi} E 'P PearsonCourse [i CCRI Outlook / Courses 3%. MyCCRI .- ScilabTopics I Other bookmarks a A boy throws a ball of mass 0.25 kg straight upward with an initial speed of 20 m/s When the ball returns ' to the boy, its speed is 17 m/S How much much work does air resistance do on the ball during its flight? 32. A mouse of mass 200 g falls 100 m down a vertical mine shaft and lands at the bottom with a speed of 8.0 m/s. During its fall, how much work is done on the mouse by air resistance? 33. Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 m above water with an initial speed of 15.0 m/s strikes the water with a speed of 24.8 m/s independent of the direction thrown. (Hint: show that Ki + Ui : Kf + Uf) 34. A 1.0-kg ball at the end of a 2.0-m string swings in a vertical plane. At its lowest point the ball is moving with a speed of 10 m/s. (a) What is its speed at the top of its path? (b) What is the tension in the string when the ball is at the bottom and at the top of its path? @ Ignoring details associated with friction, extra forces exerted by arm and leg muscles, and other factors, we can consider a pole vault as the conversion of an athlete's running kinetic energy to gravitational potential energy. If an athlete is to lift his body 4.8 m during a vault, what speed must he have when he plants his pole