POSSIBLE POINTS: 1. A 60 Kg student wearing frictionless skates, pushed by a friend with a force of 30N. How far must the student be pushed, starting from rest with a fina velocity of 2m/s?​

i think the answer is b

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.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle