P = mv
p = 3.5 × 5
p = 17.5 kg .m/s
I hopes this helps
Photosynthieis sry if spelled wrong
Growing willow for biofuel is sustainable development because it is a source of fuel which potentially will never run out. For every willow tree that is cut down, another can be planted in its place. This means that the source of fuel is potentially limitless and subsequently sustainable.
I got quite Of bit of answers out of this