Please help mee 1. A body weighing 2 kg moves in a straight line with a speed of 72 km / h. If the force 10N will act on the body, after how long will its speed become 30m / s? ​

v0=72 km/h:3.6=20 m/s

a=F/m=10/2=5m/s^2

t=(vf-v0)/a

t= (30-20)/5=10/5=2s

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide