Space मे Pencil का इस्तेमाल क्यूँ खतरनाक है?|Why pencil is not used in space in hindi|#shorts

A thin pencil of mass M and length L is being moved in a plane so that its centre (i.e. centre of mass) goes in a circular path of radius R at a constant angular speed omega . However, the orientation of the pencil does not change in space. Its tip (A) always remains above the other end (B) in the figure shown (a) Write the kinetic energy of the pencil. (b) Find the magnitude of net force acting on the pencil.

Why is graphite used as a maJor component in pencil lead?

Name the algae useful for prolonged space flight Why?

Example why: (i) we slip when step on a banana pell. (ii) lubricants are used in matchines. (iii) a hover-creft travels much faster then a steamer pushing through water. (iv) aeroplanes, missiles, and space ships have their front pointed.

The price of a rubber is Rs. 3. The price of 20 rubbers is equal to that of three pens. The price of a pen is equal to that of two pencils and the price of six pencils is equal to that of five markers. What is the price of one marker ? एक रबड़ का मूल्य 3 रूपए है | 20 रबडो का मूल्य तीन कलमों के मूल्य के बराबर है | एक कलम का मूल्य दो पेंसिल के मूल्य के बराबर है और छह पेंसिल का मूल्य पांच मार्कर के मूल्य के बराबर है | एक मार्कर का मूल्य कितना है ?