What is the displacement of a student who walks 12 m North, 5 m West, 3 m South,
1 answer:
When you draw all 4 of those moves, you see that he winds up 9m North and 11m West of where he started.
So the magnitude of his displacement is
D = √(9² + 11²) m²
D = √(81 + 121) m²
D = √(202) m²
<em>D = 14.2 m</em>
The direction is arctan(-11/9) = <em>50.7° west of North</em>
You might be interested in
Answer:
Transferred
Explanation:
It only changes from one state to another
Answer:
9 kg
Explanation:
Momentum is mass times velocity.
p = mv
36 kgm/s = m (4 m/s)
m = 9 kg
The mass of a plastic spoon
4.98 kJ/mol would be the answer I believe :) hope this helped
