Recent content by sillybilly

can you please tell me how you got that equation? with that equation it is simple but how did you get it?

someone please please help me :(

Homework Statement A stone is dropped off a bridge 50m above the water. Exactly 1s later another stone is thrown down and both stones strike the water together. What must the initial speed of the second stone have been? ohh I am sorry but i have no idea please help me out here thank you...

hello i have a very similar question to this but what i don't understant is t(subscript)1-1 this equals 0... i don't get that?? soo time is zero?

sweet forum :)

:bugeye: but hahaha goood one ;D

ohh wow... thankyou soo much and yes the first one was easier :) (i did them both) THANK YOU SOOO MUCH :D

actually yes they have many times i even no my dads friend did dat...

ohh yes THANK YOU! :)

Homework Statement a 1 ton rollercoaster falls froma top of 100m ramp. how high above the ground is it when it is traveling at 20m/s. assume no friction I DONT NO HOW TO START OR WHERE TO START FROM! PLZ HELP

FUN solving Quadratic equations :) Homework Statement Marnie can walk 1km/h faster than Jon. She completes a 20 km hike 1 hour before him. Write an equation ans solve it and find their walking speeds. Homework Equations speed= distance/time the quadratic equation The Attempt at a...

i joined here coz I am hopeless in physics and need answers lol ;D

ohh yes thankyou that's wat i did i just wanted to no if i was on the right track fanks a ton YAY :)

im doing this eperiment on rollercoasters and i was wondering if loop radius effects the vehicle; like if the loop was to small will it make it through? or if the loop was to big will it make it or just simply fall off? :) THANKYOU