An object has a velocity of 8 m/s and a kinetic energy of 480j what is the mass of the object

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

Often called simply "velocity," this is the velocity of an object at a particular moment in time.

Emmy kicks a soccer ball up at an angle of 45° over a level field. she watches the ball's trajectory and notices that it lands, two seconds after being kicked, about 20 m away to the north. assume that air resistance is negligible, and plot the horizontal and vertical components of the ball's velocity as a function of time. consider only the time that the ball is in the air, after being kicked but before landing. take "north" and "up" as the positive ‑ and ‑directions, respectively, and use ≈10 m/s2 for the downward acceleration due to gravity.