Question

A hot-air balloon with a mass of 400 kilograms moves across the sky with 3,200 joules of kinetic energy. The velocity of the balloon is meters/second.

Answer 1

Answer:The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north)

hope it helps

Answer 2

Answer: The answer is 4.

Explanation: If you do all the math you get 16, the square root of 16 is 4 :)