GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is a vector quantity?
A
15 lightyears
B
24 km
C
12 kg
D
20 m West
Explanation: 

Detailed explanation-1: -Here the unit involved is 20 m/s2 which is the unit of acceleration and acceleration is a vector quantity. So, 20 m/s2 is a vector quantity as it involves magnitude as well as direction.

Detailed explanation-2: -Quantities: Vectors: Weight, velocity, acceleration, force. Scalar: Mass, distance, time, volume, density, speed, temperature, energy.

Detailed explanation-3: -So, 20 m/s towards north is vector.

Detailed explanation-4: -Position, displacement, velocity, Acceleration, Momentum, weight, Force, torque, impulse, thrust, Electric field, magnetic field, gravitational field, Electric current density, area, Amplitude, wavelength, surface area, etc. 24-Jan-2022

There is 1 question to complete.