hello, glad this site exisits.(adsbygoogle = window.adsbygoogle || []).push({});

i got a test coming up on work, power, k and p energy, so forth . . .

i got two test problems here that i can't figure out for the life of me.

a) While running a person dissapates .6 j of mechanical energy per kg of body mass. if a 60 kg runner dissapates a power of 70 W during a race, how fast is the person running? Assume a running step is 1.5 m long.

b) A child slides without friction from a height of h along a cuved waterslide. She is launched from a height of h/5 into the pool.

it looks as though the angle is 45 degrees in the slide and i need to find the distance or the x value when she lands in the pool.

if anyone can help me out here or if you need further info, drop a line. thanks a lot in advance . . .

peace . . .

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# Homework Help: Mech energy and perplexing waterslide

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