Advertisements
Advertisements
Question
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 The force is then withdrawn and the body moves with a velocity of 2 ms-1.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
Solution
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
RELATED QUESTIONS
When a shot is fired from a gun, the gun is recoiled. Explain.
What do you understand by the term weight?
State the unit of weight in SI system.
Name the device used for measuring weight
A man sits in a machine which generates acceleration five times more than the acceleration due to gravity. If the mass of the man is 80 kg, what is his weight? Take g = 10 ms−2.
A man weigh 800 N at the equator. How does the weight of man change at the following place?
At poles
A man weigh 800 N at the equator. How does the weight of man change at the following place?
100 km up in space
Does the force of gravitation between two objects depend on the medium between them?
Can every force produced motion in every type of 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 string on the block.
