Question

Two quantities of 5 and 12 unit when
added gives a quantity 13 unit. The
quantity is
a) time
b) mass
c) linear momentumd) speed​

Answer 1

Answer:linear momentum

Explanation:

Answer 2

The quantity is c) linear momentum.

Following is some information about physical quantities:

• Scalar quantities: These quantities have only magnitude. They do not have or depend on a specific direction. The addition of two scalars is equal to the addition of their magnitudes.
• Vector quantities: These quantities have both magnitude and direction. Their addition depends on the magnitude as well as the direction of the vectors. Let a be one vector and b be another vector, c is the resultant of a and b, and θ is the angle between a and b. |c| = √[(a)² + (b)² + 2ab cosθ]

Time, mass, and speed are scalar quantities. So if these quantities are added, the sum of 5 and 12 will be 17 and can not be 13 in any case.

Linear momentum is a vector quantity and if the angle between the two vectors is 90°, then the resultant of these can be 13

let a = 5 and b = 12

c = √(5)² + (12)²

c = √25 + 144

c = √169

c = 13

Therefore, linear momentum can be the quantity.