Advertisements
Advertisements
प्रश्न
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 The force is then withdrawn and the body moves with a velocity of 2 ms-1.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
उत्तर
Time for which force is applied = 0.1 s.
Mass of body = 2 kg
Initial velocity of body = 0 ms-1
Final velocity of body = 2 ms-1.
We know FX t = m (v - u)
F X 0.1 = 2 (2 - 0)
F = 4 /0.1 = 40 N.
APPEARS IN
संबंधित प्रश्न
The weight of a body is 2.0 N. What is the mass of the body? (g = 10 m s-2)
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?
What do you understand by the term weight?
State the unit of weight in CGS system.
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.
Is force a scalar or a vector quantity?
Why do objects fall towards the earth?
What is the relationship between force and acceleration?
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.
