Answer:
a) Time period is 3.3 seconds
b) The frequency is 0.3030 Hz
c) amplitude is 0.25 m
d) maximum speed is 0.476 m/s
Explanation:
Given the data in the question;
a) Period
Time Period T = Time taken for one oscillation
T = 33s / 10 = 3.3 seconds
Therefore, Time period is 3.3 seconds
b) Frequency
we know that frequency is the inverse of time period
so;
Frequency f = 1/T = 1 / 3.3 s 
Frequency f = 0.3030 Hz
Therefore, The frequency is 0.3030 Hz
c) amplitude
amplitude A =  ( 60 cm - 10 cm )
( 60 cm - 10 cm )
A =  × 50 cm
 × 50 cm
A = 25 cm 
A = 0.25 m
Therefore, amplitude is 0.25 m
d) maximum speed of the glider
maximum speed  = ωA
 = ωA
and ω = 2π/T
so maximum speed  =
 =  A
A
so we substitute
so maximum speed  =
 =  × 0.25 m
 × 0.25 m
so maximum speed  = 0.476 m/s
 = 0.476 m/s
Therefore, maximum speed is 0.476 m/s