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ICSE Class 9 Answered

Can the three simultaneous velocities of 2, 3 and 7 units keep a body at rest? Give reason for vour answer.
Asked by kiranandroid8 | 22 Oct, 2022, 02:19: PM
Expert Answer
If three simultaneous velocity vectors keep a body at rest , then these velocity vectors should from a triangle .
 
we can not form a triangle with vectors of 2 , 3 and 7 units due to the following reason.
 
If 2 unit and 3 unit are two sides of triangle then third side can not be 7 unit because 
sum of two sides should be greater than third side in a triangle.
 
Hence it is not possible to keep a body at rest for simultaneous velocities 2, 3 and 7 units .
 
Answered by Thiyagarajan K | 06 Nov, 2022, 03:19: PM
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