What is the resultant of the vectors shown?
2 answers:
Answer:
Option C
Explanation:
As we know that when we have to subtract a vector from another vector then the resultant of two vectors is same as we add the reverse of the vector into the first vector.
so here we need to add reverse of vector B into vector A
since here we have to find the resultant of the difference of two vectors so we will first reverse the direction of 2nd vector given here and then add it into the first vector.
So here as per the figure given below correct answer is option C
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<u>Answer:</u> The correct answer is Option b.
<u>Explanation:</u>
Young's Modulus is defined as the ratio of stress acting on a substance to the amount of strain produced.
Stress is defined as force per unit area and strain is defined as proportional deformation in a material.
The equation representing Young's Modulus is:
where,
Y = Young's Modulus
F = force exerted by the weight
l = length of wire
A = area of cross section
= change in length
Hence, the correct answer is Option b.