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Can someone help me with some physics questions and explain to me how you did them?
58.
a) Displacement
b) mass
c) speed
d) Time
e) Area
f) Acceleration
59.
What is the resultant displacement if a person walks 46m (E), followed by 23 km (S)
60.
While delivering flyers, Brad walks 1.0 km (N), 0.5 km (E), 1.0 km (S), and finally 0.5 km (W) in a total time of 1.5 hours.
b) What is the total distance travelled?
c) What is Brad's average speed?
d) What is the resultant displacement
e) What is Brad's average velocity?
1 Answer
- WoodsmanLv 78 years agoFavorite Answer
58. You haven't stated a question.
If the question was "Which of the following are vector quantities?", the answer is (a) and (f). The others are scalars (no direction).
59. mag displacement d = √(46² + 23²) m = 51 m
Θ = arctan(-23/46) = -27º = 27º S of E
60. a) Distance = (1 + 0.5 + 1 + 0.5)km = 3 km
b) speed = distance / time = 3km / 1.5h = 2 km/h
c) displacement = 0 km east and 0 km north
magnitude = 0 km
d) avg velocity = 0 km/h
