Yes I did but I can't use that data to find the second spring constant to compare it to the first. I have to figure out how to manipulate my Force vs. Time graph (that I did with the 1kg mass) to figure out the spring constant.
For the lab I have to find the spring constant and how force relates to time with simple harmonic motion. To find the spring constant, I used hooke's law and compared different added masses to the stretch from the equilibrium position. When I graphed that, the slope was the spring constant since...
I re-did Q1 and I got impossible! T= X/40 & T= X/R and D= 2x so D= 2x/80kmph ( R is what I am looking for)
X/40+ X/ R = 2x/80
so if I use 80 for my distance
2+ 80/R = 2
80/R = 0
80 = 0
and that's impossible! That's why his name was Harry Hopeless and my name isn't!
My internet was out, sorry it took me such a long time to reply, and thanks for being patient and helping me.
Q1) Half the trip is 40km, it took 30 minutes, i need to take 1 hour to average 80kmph , the rest of the trip is 40 minutes. Distance = Average * time, 80km= 80kmph * time.. so it...
So in Q1) the d is just a variable , and I would need to drive the whole trip in one hour to average 80km/hr... so in half the trip of 40km/hr.. that would take me 30 min. So would he need to drive 40km/hr to average? Because that is what I told my teacher and my teacher told me that I was wrong...
For the 1st one.. I was thinking since I don't have a distance.. could I just pick one? So I picked 100. V= 100/ t1+t2 Then t1= 50Km/40km/h= 5/4h but t2 would = 50/v2( what we are looking for, right? )
80=100/ 5/4h + 50/v2
80(5/4h+50/v2) = 100
5/4h+50/v2=100/80 (100/80 could be...
Homework Statement
1) Harry Hopeless averages 40km/h for the first half of his car trip. How fast should he drive on the remaining half of the trip to have an average speed of 80km/h for his trip?
2) You drive to the city at an average speed of 40km/h and return at an average speed of...