Answer:
$168,000
Step-by-step explanation:
Depreciation expense using the double declining method = Depreciation factor x cost of the asset
Depreciation factor = 2 x (1/useful life)
Depreciation factor = 2 x (1/10) = 0.2
depreciation expense in year 1 = 0.2 x $1,050,000 =$210,000
book value at the beginning of year 2 = $1,050,000 - $210,000 = $840,000
depreciation expense in year 2 = 0.2 x $840,000 = $168,000