Pythagoras theorem is used in

If the vectors are of the same magnitude and same direction, they are said to be

Two vectors are said to be equal if they have same magnitude and direction, regardless of the positions of their positions of their initial points.

The angle between the vectors is _______ if they are orthogonal

Two vectors are orthogonal when they are perpendicular to each other. i.e. 90 degrees and the dot product of the two vectors is 0.

The triangle law of vectors is used for

Angle in the graphical representation represents

If the length of the arrow gives the magnitude of the vector, then the angle would give the direction of the vector quantity.

Speed is a _________ quantity.

Speed is the rate of the change of distance with respect to time, while velocity is a vector quantity- it is the speed of an object in a particular direction.

|A| if A is a vector, the symbol| | represents

A vector is represented by the arrow, and arrow gives the direction, hence, | | gives the magnitude.

The arrow on the vector represents

Displacement is a _________ quantity.

The velocity of a person on the boat is 6m/s, and the velocity of the river is 8m/s.
Find the velocity of the person with respect to the river.

If a body is moved to a displacement of 8 m in 4 s. Find  the velocity of the body.

 

A man is walking in the rain with the speed of 6 m/s in the west direction, and it is raining vertically downwards with the speed of 3 m/s. Find the direction of the person umbrella so that the rain doesn't  wet him.

 

A man is walking in the rain with the speed of 4 m/s in the west direction, and it is raining vertically downwards with the speed of 4 m/s. Find the direction of the person’s umbrella so that the rain does not wet him.

 

If the aeroplane's velocity is 20 m/s, the distance from the initial to the final point is 1200 m. Find the time taken by the aircraft to reach the destination