Weed...its a marijuana test
Answer: 26.7 s
Explanation:
Given
Width of the river, = 0.2 km = 200 m
Speed of the rover, = 3 m/s
Speed of the boat, = 8 m/s
From the question, the boat would have to move westward. In moving westward, the angle will be
tan A = 3/8
tan A = 0.375
A = tan^-1(0.375)
A = 21°
Then, the velocity of the boat northward will be
v(north) = 8 cos 21
v(north) = 8 * 0.934
v(north) = 7.47 m/s
Therefore, the time taken would be
t = 200/7.47
t = 26.7 s
Answer:
Distance ran by basketball player = 4.5 m
Explanation:
We have equation of motion, v = u+at
Substituting
6 = 0 + a x 1.5
a = 4m/s²
Now we need to find distance traveled, we have the equation of motion
v² = u² + 2as
Substituting
6² = 0² + 2 x 4 x s
8 s = 36
s = 4.5 m
Distance ran by basketball player = 4.5 m
The answer is the particles move faster
Slightly downstream for the shortest possible time