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 The force is then withdrawn and the body moves with a velocity of 2 ms-1.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
Advertisements
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 on Earth is 98 N, where acceleration due to gravity is 9.8 m s-2. What will be its (a) mass and (b) weight on the Moon, where acceleration due to gravity is 1.6 m s-2?
State two important characteristics of mass.
Name the device used for measuring 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
Do action and reaction act on the same body?
Is force a scalar or a vector quantity?
A truck rolls down a hill with constant acceleration after starting from rest. It travels a distance of 100 m in 10 s. find its acceleration. Find the force acting on it, if its mass is 5 metric tons. (tonne)
Where do you weigh more: at the poles or at equator?
Explain why:
A moon rocket needs to reach a certain velocity.
What is the relationship between force and acceleration?
