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Nataly [62]
3 years ago
12

Sam is driving along the highway towards saint john.He travels 150km in 3.00hrs.What is the average speed for his trip?

Physics
2 answers:
Zina [86]3 years ago
4 0

Answer:

what kind of car

Explanation:

Alexeev081 [22]3 years ago
3 0

Answer:

50km/hr

Explanation:

Now I am assuming you want the answer in Km/hr. with that being said speed is just distance/time.

so speed = 150km/3hr = 50km/hr

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A force vector points due east and has a magnitude of 140 newtons. A second force is added to . The resultant of the two vectors
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Answer:

(a) When the resultant force is pointing along east line, the magnitude and direction of the second force is 280 N East

(b)  When the resultant force is pointing along west line, the magnitude and direction of the second force is 560 N West

Explanation:

Given;

a force vector points due east, F_1 = 140 N

let the second force = F_2

let the resultant of the two vectors = F

(a) When the resultant force is pointing along east line

the second force must be pointing due east

F = F_1 + F_2\\\\F_2 = F - F_1\\\\F_2 = 420 \ N - 140 \ N\\\\F_2 = 280 \ N

F_2 = 280 \ East

(b) When the resultant force is pointing along west line

the second force must be pointing due west and it must have a greater magnitude compared to the first force in order to have a resultant in west line.

F = F_2 - F_1\\\\F_2 = F + F_1\\\\F_2 = 420 \ N + 140 \ N\\\\F_2 = 560 \ N

F_2 = 560 \ West

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