Speed is a _________ quantity.

|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

 

 

If the velocity of the aeroplane is 20 m /s, the distance from the initial to the final point is 2300 m. Find the time taken by the aircraft to reach the destination.

 

1 hr 55 mins equals 115 minutes

The unit of time in CGS system and SI system  is

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If a car is moving to 400 m/s North , and 300 m/s East. What is the relative velocity?

 

If the river's width is 10 m  and the angle of the drift is 60 degrees, the velocity of the person on the boat concerning the river is 4 m/s. Find the time taken by to cross the river.

 

If the river's width is 4 m and the angle of the drift is 30 degrees, the velocity of the person on the boat concerning the river is 3 m/s. Find the time taken to cross the river.