The second ball should strike at double the original t value
Answer:
B
Explanation:
Speed is the magnitude of the velocity vector, so it can never be negative.
The answer would be option D "a ball sitting on a shelf." Potential energy is the amount of energy a object has while it's at rest.. (or not moving) Kinetic energy is how much energy a object is while it's moving. So in this case it's option D because a ball sitting on a shelf isn't moving therefore it has potential energy. It's not option A because thats a example of kinetic energy since how the roller coaster is moving. It's not option B because it's kinetic energy because the bike is moving. It's also not option C because it's kinetic energy because the bird is moving.
Hope this helps!
Answer:
73N
Explanation:Just multiply 1.2^2 by 50
The answer is number two, number four, and number one
