i dont like it

src/uebung07/quantities/plain/Time.java

@@ -0,0 +1,41 @@
+package uebung07.quantities.plain;
+
+import static uebung07.quantities.plain.LengthUnit.METER;
+
+public class Time extends Quantity{
+    private final TimeUnit unit;
+
+    public Time(double value, TimeUnit unit) {
+        super(value, unit);
+        this.unit = unit;
+    }
+
+    public Time plus(Time other) {
+        return new Time( value + other.getBaseValue() / unit.baseFactor, unit);
+    }
+
+    public Time minus(Time other) {
+        return new Time( value - other.getBaseValue() / unit.baseFactor, unit);
+    }
+
+    public Time mult(double f) {
+        return new Time( value * f, unit);
+    }
+
+    public Time div(double f) {
+        return new Time( value / f, unit);
+    }
+
+    public Time to(TimeUnit unit) {
+        return new Time(getBaseValue() / unit.baseFactor, unit)
+    }
+
+    public double div(Time other) {
+        return getBaseValue() / other.getBaseValue();
+    }
+
+    public Length mult(Velocity v) {
+        return new Length(this.value(METER), METER);
+    }
+
+}