Com
force of
number
mass of mass of acceleration
applied force
washers
of
washers
gravity on the
due to gravity
of washers
washers
on the car
washers
m. (g) m (kg) a, (m/s)
f, (kgm/s2) fwe(n)
1
4.9 0.0049
0.049
0.049
3 i 14.7
10
0.147
the acceleration due to gravity for any object, including 1 washer on the string, is always assumed to be
m/s2
the mass of 3 washers, when converted to kg, is
kg
the applied force of 3 washers will increase the applied force on the car to
) intro
done

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2

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.

area of focus