Answer:
d = 0.604 m
Explanation:
m = 50 g =0.05 kg, θ = 25 ° , x= 0.100 m, K 25.0 N/m
At the bottom P.E. = 0 J and
K.E. = 1/2 K x² = 1/2  × 25 N/m × (0.100 m)² = 0.125 J
at maximum height after which it will reverse direction
P.E. = mgh     (P.E. = K.E.)
h = K.E. /mg = 0.125 J / (0.05 kg × 9.81 m/s²)
h= 0.255 m
Now h = d sin θ
d = 0.225 m / sin 25
d = 0.604 m