Physics - Unit & Dimension Question with Solution | TestHub

One calorie is a unit of heat energy and its value is 4.18 J where $1\mathrm{J}=1\mathrm{kg}-{\mathrm{m}}^2/{\sec }^2$. Suppose we use a new system of units in which the unit of mass equals 2 kg , the unit of length equals 5 m and the unit of the time is 10 sec . Then find the value of one calorie in the new system of units.