(adsbygoogle = window.adsbygoogle || []).push({}); Help with 2 really easy assignments please :)

Hey there, fellas! I'm finnish so I probably don't know all the right terms (if any!), but I hope you get the point. So;

An Audi A3 (mass 1205 kg) is overtaking a Volvo XC (mass 2113kg and velocity 40km/h) at 55 km/h

a) Calculate the cars' motion energies

b) On how big a hill would the Volvo have to drive to have as much potential energy as the Audi has motion energy?

Here's the second one;

A swimmer dives in the water from 10 metres. His mass is 85kg

a) What's the biggest amount of potential energy he can get, errr.. "compared to the water". It's kinda hard to translate this one :/

b) What is his speed on the moment he hits the water?

c) at which height does the swimmer have 50% less velocity than in part b)?

Hope the language isn't all that bad.. :/ Those two are really easy assignments for you I guess :)

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# Homework Help: Help with 2 really easy assignments please

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