Sujit Prasad Kushwaha

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  Once there was a poor woodcutter. He sold firewood in the market and bought food, clothes for him. One day his axe fell into the river while he was cutting firewood. He wept sitting on the bank of the river because he would not be able to buy another axe. The river god heard his sorrow and came out of the water. Firstly, the river god showed a golden axe and secondly, silver axe. But the woodcutter said that those were not his axes. Finally, the god showed him his own axe. He said that that was his own axe. The river god was pleased with him and gave all three axes. The woodcutter went home and told the story to his neighbors. After listening the story, another greedy woodcutter went to the same place and did the similar activities like the first woodcutter. After listening the second Woodcutter’s sorrow, the river god came out of water and showed him a golden axe. Then, the woodcutter became happy and replied that it was his own axe. The god knew his tricks and was angry with hi...

 

  (Access Intensive Youth Leadership Camp) Date: From 2 nd to 6 th May 2018 Venue: Hotel Pokhara Grande A short reflection of Leadership camp by Mr. Sujit Prasad Kushwaha Pokhara Access (Group B) I was very excited to attend the intensive camp organized by NELTA and supported by U.S. Embassy, Nepal. Before the camp I was well prepared for the camp. First, I would also like to extend my heartfelt sympathy to Access Jhapa for the accident. On 2 nd May 2018, we reached the venue on time and after having rest we went in camp hall. After having introduction with each other we made group cheer’s which was “We are lovely, we are Rose, and we are here to have winning pose”. Next day, we got up early in the morning and did all the activities and at around 7:00 o’clock we went in yoga session and our yoga guru taught the ways of being healthy and active. We did not only learn theoretically but also practically. Similarly, we took participation in various sessions. Some of them are –...

Conservation of Linear Momentum The total quantity of motion contained in a body is called linear momentum . It is denoted by $\vec{P}$ and defined as the product of mass and velocity of the body. For a body of mass $m$ and velocity $v$, its linear momentum $\vec{P}$ in vector form is given by: $$\vec{P} = m\vec{v}$$ In terms of magnitude only, $$P = mv$$ SI unit of linear momentum is $\text{kg m s}^{-1}$ or Ns, and dimensional formula is $[MLT^{-1}]$. Law of Conservation of Linear Momentum It states that, "the total linear momentum of a system of particles remains constant, provided that no external force acts on the system" . Proof: From Newton's second law of motion , $$F = \frac{dP}{dt}$$ In absence of force, $$\frac{dP}{dt} = 0 \;\Rightarrow\; P = \text{constant}$$ Proof (for a system of particles): Let us consider a system of $n$ particles of total mass $M$. Then, $$M = m_1 + m_2 + \cdots + m_n$$ So, $$P = P_1 + P_2 + \cdots + P_n$$ Differe...