Question
A rubber ball is dropped from a height of 2 metres. To
what height will it rise if there is no loss of energy/velocity after rebounding?Solution
The potential energy of a body when raised through height h is given by mgh. Each time, a normal rubber ball hits the floor, it loses one-fifth of its total energy and the rebound height is proportional to energy, so each bounce will rebound to four-fifth of the previous bounce.
The green revolution leads to the production of foodgrains basically paddy and wheat, golden revolution is phased out in similar pattern for the product...
Salt is added in the pickle to preserve it for a longer time. Salt in pickle is measured byÂ
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What is the purpose of the scouring stage in cotton purification?
The rural development projects and men behind them are listed below. Which of the following is correctly matched?
1. Bhoodan Movement – Albert ...
Tristeza virus is associated with .....
The let-down of milk in cow is due to release of which of the following hormone?Â
According to Planning commission, Indian region is divided into how many agro climatic zones?
Which of the following is not a type of angiosperm?Â
Which part of alimentary canal of poultry is known as muscular stomach?Â
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