Question:medium

The length of a vector $(3\hat{i} + \hat{j} + 2\hat{k})$ in XY plane is

Show Hint

To find the length in any specific plane (XY, YZ, or ZX), simply zero out the component not mentioned and calculate the magnitude.

Updated On: Jul 4, 2026

$\sqrt{14}$
2
$\sqrt{10}$
$\sqrt{5}$

Show Solution

The Correct Option is C

Solution and Explanation

Was this answer helpful?

0

Top Questions on Mechanics

A body of mass 2 kg is moving with a velocity of 3 m/s. What is its kinetic energy?
- BITSAT - 2025
- Physics
- Mechanics
View Solution
A block of mass 5 kg is placed on a frictionless surface and a force of 20 N is applied horizontally. What is the acceleration of the block?
- BITSAT - 2025
- Physics
- Mechanics
View Solution
A simple pendulum has a time period of 2 s on Earth's surface. What is its time period at a height equal to the Earth's radius (R)? (Acceleration due to gravity at height h is \( g_h = \frac{g}{(1 + h/R)^2} \)).
- BITSAT - 2025
- Physics
- Mechanics
View Solution
Two identical bodies of mass 1 kg each are moving towards each other with velocities of 5 m/s and 3 m/s, respectively. They collide elastically. What will be the velocity of the body initially moving at 5 m/s after the collision?
- BITSAT - 2025
- Physics
- Mechanics
View Solution
Want to practice more? Try solving extra ecology questions todayView All Questions

Questions Asked in AP ECET Metallurgical Eng exam

Order of the matrix $\begin{bmatrix} 1 & 6 \\ 2 & 0 \\ 7 & -1 \end{bmatrix}$ is

If two rows (or columns) of a determinant of order 3 are identical then the value of determinant is

Co-factor of -4 in $\begin{vmatrix} 1 & 2 & 3 \\ -4 & 3 & 6 \\ 2 & -7 & 9 \end{vmatrix}$ is

The Matrix $\begin{bmatrix} a & h & g \\ h & b & f \\ g & f & c \end{bmatrix}$ is