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What is the kinetic energy of a person on top of a tower e equals with a potential energy of 15000 joules?
Wiki User
∙ 12y ago
(assuming no air resistance)
potential energy translated to kinetic energy.
you need some numbers in:
potential energy = m*g*h = 15 000 j
say m = 100 kg
say g = 10 m/s^2 (approximation)
then h = 15 000 / (100*10) = 15 metres
so
100 kg after falling 15 metres will have kinetic energy = 15 000 joules
KE = 0.5 * m * v^2
so velocity) at base of tower :
v =square root (15 000 / (0.5 * 100))
v = 17.32 metres / second
so , potential energy lost = kinetic energy gained.
Wiki User
∙ 12y ago
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