The displacement of a block of mass 439g
439
g
attached to a spring whose spring constant is 66N/m
66
N
m
is given by x=Asin(ωt)
x
A
s
i
n
ω
t
where A=12cm
A
12
c
m
. In the first complete cycle find the values of x
x
and t
t
at which the kinetic energy is equal to one half the potential energy.
First position: cm...... First time: