a ball is thrown horizontally from a 20 m high building with a speed of 5.0 m/s. How far from the base of the building does the
ball hit the ground?
1 answer:
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Answer:
F = 10 N
Explanation:
- Assuming that we can treat to both particles as point charges, the magnitude of the force that one charge exerts on the other, must obey Coulomb's Law.
- The expression for this force, applied to the charges +Q and +q, separated by a distance d, is as follows:
- If we replace +Q by +4Q, and d by 2*d, the new expression for the magnitude of the force is as follows:
- As it can be seen, the force will be as same as before making changes, so F= 10 N.