Two particles d and b. of mass in and 3m respectively. are connected by a light inextensible string of length 7. particle a is placed on a horizontal table at a perpendicular distance / from its edge, the coefficient of friction between particle a and the table being 1/3. particle b, which is at the edge of the table, is just pushed over the edge and subsequently falls under the action of gravity and the tension in the string, assuming that there is no friction between the string and the table, show that the speed of 4 when it reaches the table edge is 2 (81/3). find also the time taken by particle to reach the edge of the table and the tension in the string while a is moving on the table.

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b mirrors submit a iisner? e. for which optical devices does d sometimes have a positive value? o a a and b o b. a and c o c. b and d 0 d. b and cb

their crystal patterns have been disrupted by stress

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.