Question

What is the kinetic energy of a 2,000kg boat moving at 5 m/sec?

Answer 1

Answer:

$25000j \: or \: 25kj$

explanation:

KE = 1/2 mv square

kinetic energy = 1/2*mass* velocity^2

$where \: mass \: is \: in \: kilograms \: kg$

and velocity is in meter per second m/s

$here \: m \: = 2000$

$v \: = \: 5$

$v ^{2} = \: 25$

1/2 mv square = 1/2 . 2000 .25

= 50000/2

= 25000

$ke \: = \: 25000j \: or \: 25kj$