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YARETZYVENCES2144
18.01.2020 •
Physics
Two vectors, of magnitudes 20 mm and 50 mm, are added together. which one of the following is a possible value for the magnitude of the resultant? a. 10 mm
b. 20 mm
c. 40 mm
d. 80 mm
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Ответ:
Explanation:
The magnitudes of two vectors are 20 mm and 50 mm.
Maximum magnitude will be getting when they are acting in the same direction,
Maximum magnitude = 20 + 50 = 70 mm
Minimum magnitude will be getting when they are acting in the opposite direction,
Minimum magnitude = 50 - 20 = 30 mm
So the resultant of these two vectors lies in between 70 mm and 30 mm.
Only option C 40 mm satisfies this.
Option C is the correct answer.
Ответ:
if it’s moving horizontally it’s moving at a constant speed
Explanation: