Calculate the an kinetic energy other an object of mass 200kg moving with a speed of 3m/s .
The formula for kinetic energy is:
KE = 1/2mv^2
where KE is kinetic energy, m is the mass of the object, and v is the speed of the object.
Plugging in the given values, we get:
KE = 1/2 x 200kg x (3m/s)^2
KE = 1/2 x 200kg x 9m^2/s^2
KE = 900 joules
Therefore, the kinetic energy of an object of mass 200kg moving with a speed of 3m/s is 900 joules.