*Let north and east as positive direction.
1. a = +30 km / 2 hr
a = +15 km/hr
2. a = +45 km / 3 hr
a = +15 km/hr
3. a = -30 km / 1.5 hr
a = -20 km/hr
4. a = -25 km / 0.5 hr
a = -50 km/hr
speed = (15+15+20+50) / 4
= 25 km/hr
velocity:
(horizontal): (+15-50)= -35 km/hr
(vertical): (+15-20)= -5km/hr
v = sqrt(35^2 + 5^2)
v = 35.36 km/hr
objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.
A scientific theory is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results. Where possible, theories are tested under controlled conditions in an experiment.
Answer:
257.32
Explanation:
I jus worked it out on paper. Brainliest please?
