What is the kinetic energy of a 2,000 kg boat moving at 5.0 m/s?

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Answer 1 · 2018-04-04T03:04:57

$25 kJ$ $"25 kJ"$

$"K" = 1/2\ "mv"^2 = 1/2 × "2000 kg" × ("5.0 m/s")^2 = 25 × 10^3\ "J" = "25 kJ"$

Answer 2 · 2018-04-04T03:06:22

25 000 Joules or 25kJ

Formula for kinetic energy is:
$E_k = 1/2mv^2$
Substitute:
$E_k = 1/2*2000*5^2$
$E_k = 25000J or 25kJ$