The diagram shows a motion map.
which best describes the motion of the object between 1
and 4 seconds?
the object has decreasing acceleration and increasing
velocity.
the object has positive acceleration and eventually
stops.
o the object has decreasing acceleration and decreasing
velocity
o the object has negative acceleration and eventually
stops.

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

pe = weightxheight = 2000x1000=2,000,000joules

measuring things 1 litre of water

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.