You need to split the 50K into two categories: capital expenses and currents expenses: check chapter 3 in this link:
https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4036/rental-income-2016.html
The capital expenses can be added to the price of the purchased and the current expenses use them as rental expenses.
The Adjusted purchase price is added as the addition cost on the CCA table of the rental sheet T776 and the first year of use you use 1/2 pf the CCA value.
Check this link for the rental statement guide on how to complete the CCA table:
https://www.canada.ca/en/revenue-agency/services/forms-publications/publications/t4036.html
I hope this was helpful