people will buy more of a good when its price falls and less when its price rises, according to the....
2 answers:
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Explanation:
Length of a string, l = 0.626 m
A tennis ball revolves in a horizontal circle above his head at a rate of 4.50 rev/s.
(a) The centripetal acceleration of the tennis ball is given by :
(b) When r = 0.626 m and ω = 4.50 rev/s
Speed,
When r = 1 m and ω = 4 rev/s
Speed,
Speed is more in second case when child now increases the length of the string to 1.00m but has to decrease the rate of rotation to 4.00 rev/s.
(c)
Hence, this is the required solution.