Home › NEET UG › physics › c11phy_vector_components › Per NCERT §3.5 eqn 3.13, the x-component of a ve…
Per NCERT §3.5 eqn 3.13, the x-component of a vector A of magnitude A making angle θ with the x-axis is which?
AA sin θ
BA² cos θ
CA cos θ
DA tan θ
Answer & Solution
Correct answer: C. A cos θ
NCERT eqn 3.13: A_x = A cos θ. Similarly A_y = A sin θ.
Related questions
A ceiling fan rotates at $120$ rpm. Its angular speed is approximately:A stone tied to a string is whirled in a horizontal circle at constant speed. Its acceleraA stone is thrown at $45^\circ$ on level ground with speed $u = 10$ m/s. Using $g = 10$ m/A football kicked with speed $u = 20$ m/s at $30^\circ$ above horizontal has initial vertiPer NCERT §3.6 (resultant of two equal vectors), if |A| = |B| = a and they make 90° betweePer NCERT §3.6 (resultant of two equal vectors), if |A| = |B| = a and they make 60° betweePer NCERT §3.5, components of vector A along x and y axes are scalars whose SIGN depends oPer NCERT §3.6 (eqn 3.24a), the magnitude of the resultant of two vectors A and B at angle