Choices 'C' and 'D' are both correct.
(Except in 'C', changing the temperature from 1°C to 3°C is not usually
described as 'cooling', and it's not the water's 'mass' that changes. But
water does contract in volume during that change.)
This is a statement not a question .
X=Ft is a possible equation for X because by using SI units its final term became Kg metre per second
(1,500 meters) x (1 sec/330 meters) =
(1,500 / 330) (meters-sec/meters) =
4.55 seconds
You have it exactly backwards.
IN ORDER TO run a certain distance in less time,
you must increase your speed. That's the only way.
