An amusement park ride consists of a rotating circular platform 11.4 m in diameter from
which 10 kg seats are suspended at the end
of 1.54 m massless chains. When the system
rotates, the chains make an angle of 32.3
◦ with the vertical.
The acceleration of gravity is 9.8 m/s
What is the speed of each seat?
Answer in units of m/s.
012 (part 2 of 2)
If a child of mass 29.2 kg sits in a seat, what is
the tension in the chain (for the same angle)?
Answer in units of N.

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s

maria has a savings account that is earning simple interest. if she started with $200 in the account and has earned a total of $8 in interest in two years, what is the rate of the account? use the formula  .