Advertisements
Advertisements
प्रश्न
State two important characteristics of mass.
Advertisements
उत्तर
Characteristics of mass:
- It is independent of the position and surroundings of a body.
- It is a scalar quantity.
- It remains constant at all places, provided the velocity of the body is not too high.
APPEARS IN
संबंधित प्रश्न
In the Figure a block of weight 15 N is hanging from a rigid support by a string. What force is exerted by (a) a block on the string and (b) a string on the block? Name and show them in the diagram.
What is the (a) force of gravity and (b) weight of a block of mass 10.5 kg ? Take g = 10 ms-2 .
How is acceleration due to gravity-related to
- mass of a planet
- distance of body from the center of the earth?
State two important characteristics of weight
A man weigh 800 N at the equator. How does the weight of man change at the following place?
10 km down in a mine
How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?
Body is taken to a high mountain.
Do action and reaction act on the same body?
In the below figure, a block of weight 20 N is hanging from a rigid support by a string. Find:
The force exerted by block on the string.
A force acts for 0.1 s on a body of mass 2.0 kg initially at rest. The force is then withdrawn and the body moves with a velocity of 2 ms-1. Find the average force applied by the player
A cricket ball of mass 500 g moving at a speed of 30 ms 1 is brought to rest by a player in 0.03 s. Find the average force applied by the player.
