Recent content by tyrantboy

delete thread please

Delete thread please

where is your attempt?

Mg is mass x gravity rite?

thx guys i'll get back at you with my new answer afterwards

Homework Statement why is it that you sometimes feel 'light' or 'heavy' while moving in a fast moving lift? A lift has a total maximum mass, including occupants of 1000kg. it is supported by steel ables. the maximum acceleration or deceleration of the lift in operation is 2.0ms^-2. How big is...

But how does the roller coaster link with Newton's law of motion?

thx dynamics really cleared my doubts

Homework Statement The Following text is taken from a roller coaster webpage: "You reach the top of the hill, and finally realize that being in the front seat wasn't the best idea. You find yourself hanging over the ledge for what seems eternity, and finally you feel the foce of the back...

i have a TI-84 plus. i bought it for around 130 euros. very handy to check for functions and check graphs

thx dick. u have been of great help to me. thanks for clearing this mess.

thx for clearing things up for me but how does the reaction force act in the donkey? wait force is either pull or push rite? so wen the donkey pulls the cart it is exerting a force? tat is the action rite? and so the reaction force (pull) moves the cart forward. ut doesn't this cancel out since...

I quite don't get it what u mean by the Earth moving backwards? wat does that have to do with the donkey?

Oh yea and this is for Dick's question the Earth is held together by gravity since all matter attracts all other matter through a force called gravity.

thx for making things a bit clearer gc2004. well come to think about it, the donkey exerts a force on the cart since it is pulling it and thus the cart would exert a force on the wheels which would then in turn move forward. The force is being felt by the wheels and since the donkey force is...