4.
Two identical balls are at rest side by side
at the bottom of a hill. Sometime after ball
A is kicked up the hill, ball B is given a
kick up the hill. Ball A is .headed downhill
when it passes ball B headed up the hill.
At the instant when ball A passes ball B,
it has the same
...a) position and velocity as ball B ... b) position an acceleration as ball B... c) velocity and acceleration as ball B ... d) displacement and velocity as ball B....... hopefully someone answers it ASAP. Thanks
Answers
Answer:
I don't know sorry!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
B) The position of the ball and the acceleration is same as ball B
Explanation:
Its simple, we know from the question that ball A passes ball B that means we know for sure that the position will be same- even if it existed even for a second or so. Now comes the question- Will the acceleration or velocity be same to that of Ball B. When a ball rolls down its gains velocity and when a ball is kicked up- its velocity decreases due to friction and gravity pulling it down. So velocity os out of the box. Now comes acceleration. Remember, whenever we kick a ball up or roll it down or even if we throw an object towards the sky- the force of gravity causes an accelertion known as (g) or gravitational acceleration. The gravitional accelertation will always remain constant and will never change and so both the balls experience the same acceleration that is g = 9.8m/s^2.