NEET UG PHYSICS MCQ: MOTION IN PLANE

1 Easy

1 of 1

Application +4 | -1

If the resultant of the vector

3\bar i + 4\bar j + 5\bar k

and

5\bar i + 3\bar j + 4\bar k

makes an angle

\theta \,

with x-axis. Then find

\cos \theta

View answer and explanation

Correct option: A

0.574

Option A (0.574) is correct because it represents the cosine of the angle between the resultant vector and the x-axis, calculated using the dot product.

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