According to Newton's third law of motion, "The single ball on the left will move as high as the ball on the right was dropped" is the expected result once the ball hits the ball closest to it.
Answer: Option A
<u>Explanation:</u>
Newton’s cradle is the best example for law of conservation of momentum. So that means that energy or momentum exhibited by a particle can be transferred to its nearer object with equal force. So in the given options the first option is correct. As when the right ball is dropped it will collide with its neighboring ball and transfer energy.
By this transferring of energy from one particle to another, it will reach the leftmost ball. But there will be no loss in the energy as the left ball will move as high position as the ball on the right was dropped from. So that means the energy is conserved in the cradle.
<span>This is best understood with Newtons Third Law of Motion: for every action there is an equal and opposite reaction. That should allow you to see the answer.</span>
Answer:
The work done is
Wd=2.1 joule
N/B work done is the product of force and the applied distance
Explanation:
We know that the work done expressed Mathematically as
Wd =F*d
Where Wd=work done
F=force exerted
d=distance within which the force was exerted
Given from the statement
Force =4.2N
Distance =0.5m
Note we did not use 8.5 m because the force was no longer in application
Hence
Wd=4.2*0.5
Wd=2.1 joule
Um... This is not exactly physics...(Although, this school of thought is most likely Moral Relativism.)