Jump to content

Recommended Posts

If you haven't got a big enough graduated flask you could drive it off the end of a pier and see how far the water comes up the beach.


Another way might be to drive it very fast into a church and see how hot the fireball gets - it will be proportional to the kinetic energy in the system, which is itself a function of mass and velocity using the formula ? mv?. For the purposes of this calculation you could ignore the speed of the church.


If you want to keep it in one piece (you don't mention this) you could perhaps tie a stout rope around it and tie the other end to a bollard. If you knew the breaking strain of the rope (a good hardware store should be able to tell you), you could calculate how fast you had to drive around the bollard before the rope snapped. At this point you could calculate mass using the formula F = mv?/r, where F is the breaking strain of the rope, r is the length of the rope, and v is the speed you were going when it snapped.

Loz, if you assume the van was lighter than the water it displaced, then as it floated the mass of water displaced would equal the mass of the van.


If the van sank, you'd be buggered unless it was in a very deep part of the ocean where the density (and hence mass) of the water rose appreciably with depth. The van would sink until buoyancy was achieved at a particular depth (and hence density and mass).

Hallo all


Thanks for your suggestions, ideas, and insights.


Luckily, the population is not dependant upon the scientific knowledge of residents in ED.


I am going for the Local Amenity idea, then VOSPA.


I'll be back ( as Arnie Schwarzenneger said!)


Yours

R N Gutsell

the-e-dealer Wrote:

-------------------------------------------------------

> Almost right. But. actually the arcimedes principle relates to weight. I got my physics o

> level! Its not volume! Just noticed hugs explained better than me.


Weight of the water displaced, not the weight of the vehicle. As Hugo said, if the vehicle sunk (most likely) you wouldn't know it's weight.


The whole 'Eureka' story was that Archimedes knew the weight of the crown (?), but he didn't know its volume. So, he could not calculate the density and therefore decide if it was made of gold or not. But, once he stuck his fat backside in the bath...

woodrot Wrote:

-------------------------------------------------------

> I know a poor qulity joke regarding a suitable place to get the weight of your pet cetacean

> confirmed, but I cant be arsed.


Dunno about that joke, but I did hear about the oyster dancing rather vigorously at the disco. He pulled a mussel.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Latest Discussions

    • I always like Redemptions coffee though I've not visted for awhile..Romeo Jones was always my 1st choice for takeout Coffee Redemption 2nd. What IS with all these independent Yoga and Pilates Studios? Theres one on London Rd in Forest Hill (Mind) thats recently opened and then theres the Pilates place thats opened on North X Road. I looked at the prices of the one on NorthX road and was frankly shocked at how expensive it is, The FH one is slightly less.  Made me decide to stick with classes in The local authority gym
    • Dulwich Village update: The old DVillage location is (again?) under offer. The storefront next to the new grocer is going to open as a yoga and pilates studio...the name of which I've forgotten. 🤦‍♂️  Megan's is starting to push its takeaway coffee and cannibalise some of Redemption Coffee's market share. Is Megan's struggling? It's quite a big restaurant they have and rent cant be cheap. The reinventing of the Megan's branch on Lordship Lane as Ollie's seems to have stalled. And Redemption is looking a bit tired these days...
    • You're being a bit of a dick. The whole point of a forum is to discuss what is going on in the locality and this seems as reasonable a question as anything.
    • Wondering if anyone has used this delivery service and if so, how was it?  Have read mixed reviews.
Home
Events
Sign In

Sign In



Or sign in with one of these services

Search
×
    Search In
×
×
  • Create New...