Answer:
Keeping the speed fixed and decreasing the radius by a factor of 4
Explanation:
A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. The centripetal acceleration is given by :
We need to find how the "centripetal acceleration of the ball can be increased by a factor of 4"
It can be done by keeping the speed fixed and decreasing the radius by a factor of 4 such that,
R' = R/4
New centripetal acceleration will be,
So, the centripetal acceleration of the ball can be increased by a factor of 4.
Answer:
I would say a pond
Explanation:
A pond is more still than an ocean, therefore you could see your reflection better
Answer:
No. Because it would correspond to zero Instantaneous acceleration.
Explanation:
hope this helps
Answer: The temperature after another 5 minutes is 68.5°c
Explanation: Please see the attachments below
The average acceleration can be found by dividing the final speed by the time taken to reach said point so in this case you divide 60 by 8 resulting in 7.5 which will be your answer