Recent content by joseph_seb

why Newton had taken force as change in momentum per time? i mean i need to get physical interpretation?what is this force actually? also help me to get an idea about energy in sense(core concept)? not with some equations? i see these equations every time?but didn't know meanining? somebody...

i only assumed r1=r2(same approximation in both methods);then the frustum automatically transformed to cylinder.chekout the following links- 1.http://i.imgur.com/NJJa8.jpg 2.http://i.imgur.com/MVmff.jpg or http://www.filedropper.com/sphere

i have found the area of sphere in two ways using the same approximation.but i get two different answers ;one the correct value 4∏R^2?how does this happen? i'm attaching the solution below?please refer to the attachments and give a solution?

@Khashishi then what is momentum?

@sophiecentaur you said, Calculus was invented by Newton in order to discuss the way that things vary in a concise way,ie,if it is integral calculus,it is the summation of continuous values represented by function,ie we it has a meaning;i'd like to get a simliar kinda explanation,ie,how the eqn...

why Newton had taken force as change in momentum per time? i mean i need to get physical interpretation?what is this force actually? also help me to get an idea about energy in sense(core concept)? not with some equations? i see these equations every time?but didn't know meanining? somebody...