Question

if the unit of mass is 1kg ;the unit of time is 1minute and unit of acceleration is 10 ms ^-2; then the unit of energy is​

Answer 1

If the unit of mass is a kg, the unit of time a minute and the unit of acceleration a decameter per second squared, then the unit of energy (mass times acceleration) is kg decameter per second squared.

Note that under this choice of units length (acceleration times duration squared) would be measured in decameter per second squared times minute squared. This length unit equals 10 decameter times 60 squared, or 36 km.