Newton’s first law states that if an objects velocity is changing a _____ must be acting on it.
1 answer:
<h3>Answer: </h3>
(a)
<h3>Explanation </h3>- Newtons First Law can be written as the formula
since acceleration is the changing of velocity as its formula is
Thus, a force must be acting on an accelerating/decelerating object
- It is not mass as the mass does not act on the object but rather the mass is acting on the surface of the ground.
- Changing velocity is already acceleration
- inertia is the term used to describe Newtons first law
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Answer:
<em>The statement is true</em>
Explanation:
<u>Energy Conversion </u>
When an object starts to fall in free air, it speeds up as it falls. The force of gravity acting on the object causes energy to be transferred from its gravitational potential energy to its kinetic energy. We can safely say the height converts to speed and vice-versa. If no external forces act on the system, we can easily calculate heights and speeds by knowing the total mechanical energy (gravitational potential plus kinetic) is conserved.
Answer:
Answer:
Explanation:
Given
--- Ken's share
Required
The fraction each got
Since they both shared a cake, we have:
Substitute:
Factorize
Divide both sides by 3
Recall that: