answer correct thank you so much

howru

9th December 2005 - 02:26 AM

A 18 kg child descends a slide 2.50 m high and reaches the bottom with a speed of 1.86 m/s. How much thermal energy due to friction was generated in this process?

I already asked you this question but i want to know if i have the right answer?

.5mv^2+mgh=.5mv^2

i got 1.12 m/s without friction so if took the proportion of that of 1.86 , it would be 1.66 m/s.

then i used the kinetic energy, and got 24.8 Joules

Guest

9th December 2005 - 03:27 AM

VENKSUS

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