Well, there's a lot of friction going on there, so the snowball gradually loses kinetic energy just from bouncing and plowing through the snow on the ground.
But I don't think you're asking about that. I think you're ignoring that for the moment, and asking how its kinetic energy changes as its mass increases. We know that
Kinetic Energy = (1/2) (mass) (speed²)
and THAT seems to say that more mass means more kinetic energy. So maybe the snowball's kinetic energy increases as it picks up more mass.
Don't you believe it !
Remember: Energy always has to come from somewhere ... a motor, a jet, a push, gravity ... something ! It doesn't just appear out of thin air. If the snowball were rolling down hill, then it could get more kinetic energy from gravity. But if it's rolling on level ground, then it can never have any more kinetic energy than you gave it when you pushed it and let it go.
If snow or leaves stick to it and its mass increases, then its speed must decrease, in order to keep the same kinetic energy.
<span>Two objects move toward each other because of gravitational attraction. As the objects get closer and closer, the force between them increases. </span>
A boy throws a yo-yo downward and watches it climb back up. As the yo-yo is going down it changes from potential to kinetic in rotational forms.
Rotational kinetic energy is used in the Yo-Yo.
<u>Explanation:</u>
When a boy throws a yo-yo downward its string for a distance h, loses its potential energy in amount and gains kinetic energy in both translational and rotational forms. As it climbs back it loses its kinetic energy and retrieves its potential energy.
In a modern Yo-Yo, the string is not tied to an axle, but loops around it. When Yo-Yo hits the bottom area of its string, a movement of an upward action of force on the axle from the string will stop the descent. Then Yo-Yo spins axle only with rotational kinetic energy.
A boiling pot of water (the water travels in a current throughout the pot), a hot air balloon (hot air rises, making the balloon rise) , and cup of a steaming, hot liquid (hot air rises, creating steam) are all situations where convection occurs. Read more on Brainly.com - brainly.com/question/1581851#readmore
