Question 52: Motion in 2D & Vectors

Question

$$\overrightarrow A $$ is a vector quantity such that $$|\overrightarrow A |$$ = non-zero constant. Which of the following expression is true for $$\overrightarrow A $$ ?

Accepted Answer

$$\overrightarrow A  	imes \overrightarrow A  = A 	imes A 	imes \sin 0^\circ $$
$$ = 0$$

Answer

$$\overrightarrow A \,.\,\overrightarrow A  = 0$$

Answer

$$\overrightarrow A  	imes \overrightarrow A  < 0$$

Answer

$$\overrightarrow A  	imes \overrightarrow A  = 0$$

Answer

$$\overrightarrow A  	imes \overrightarrow A  > 0$$

Motion in 2D & Vectors

\overrightarrow A is a vector quantity such that |\overrightarrow A | = non-zero constant. Which of the following expression is true for \overrightarrow A $ ?

Choose the correct answer: