Recent content by Qred

never mind..it's crystal clear now. thanks a lot!

what if we can get the distance from the stretched point to the relaxed point of the slingshot and the k constant is given, can we get the same answer? also, could you please answer the 2nd question in my first post? thanks

A slingshot will shoot a 10-g pebble 22.0 straight up. How much potential energy is stored in the slingshot's rubber band? the solution is U = mgy = (10 g)(9.8 m/s^2)(22.0 m) according to the book. does this mean the potential energy of the slingshot's rubber band is equal to the...

hi, I am new here..can you please help me understand this problem below? actually i have the solution already but i don't get it..sorry I am so stupid.. here's the problem: A small rock with mass .12 kg is fastened to a massless string with length .8 m to form a pendulum. The pendulum is...