Question

Let v vector and a vector denote the velocity and acceleration respectively of the body in one dimensional motion then (A) magnitude of v vector must decrease when a vector <0. (B) speed must increase when a vector >0. (C) speed will be increase when both v vector and a vector <0. (D) speed will increase when both v vector and a vector >0​

Answer 1

Answer:

it is increase in same plane

Answer 2

Concept Introduction:-

A vector is the term used in mathematics as well as physics to refer to the values which cannot be described by the single number or may be members of vector spaces.

Explanation:-

We have been provided a question

We need to choose from the given alternatives the correct option

The correct option is (C) speed will be increase when both $v$ vector and a vector $< 0$.

It is because both velocity and acceleration have same direction so there will be an increase in magnitude of velocity.

Final Answer:-

The correct answer is option (C) speed will be increase when both $v$ vector and a vector $< 0$.

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