Question

when work is measured in joules and time is measured in seconds power is measured in what

Answer 1

Power is measured in N/m^2 and it is also measured in j/s

Answer 2

For power it can be said that the work done in one second gives a watt of power. So if the unit of work is given in joules and the time period is measured in seconds then the unit of power is given by work per second i.e.,  joules/second.

This can be said for power that when one joule of work is done in one second then power is given by 1 joule/sec.