[داعية المستقبل]

نسيت سؤالين:

A 0.25-kg block oscillates on the end of the spring with a spring constant of 200 N/m . If the system has an energy
of 6.0 J , then the maximum speed of the blok is
a) 0.06 m/s
b) 0.17 m/s
c) 4.9 m/s
d) 6.9 m/s


The period of a matar stick that is pivot about one end and is oscillating in a vertical plane.(in second
a) 1.6
b) 2.45
c) 16
d) 0.66