Question:
A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude and direction of acceleration of the stone ?
Answer:
Length of the string, l = 80 cm = 0.8 m
Number of revolutions = 14
Time taken = 25 s
Frequency,
Angular frequency,
Centripetal acceleration, 
The direction of centripetal acceleration is always directed along the string, toward the centre, at all points.
Not what you are looking for? Go ahead and submit the question, we will get back to you.
