Explanation:
time is nature's expression of change.
every change takes time.
it takes time to e.g. move from A to B.
at one point of time the universe is in one state, then some change happens, and the universe is in another state, and we have another point of time.
without time there is no change, without change there is no time.
Power = energy / time
Multiply each side by 'time', then
divide each side by 'power':
Time = energy / power
Time = 432 / 75 = <em>5.76 seconds</em>
Answer:
a.6373.5 N
b.-3837.6 N
Explanation:
Mass of roller coaster=m=1040 kg
Radius=r=24 ,
a.
Normal force=
According to question
Where
Substitute the values
b.
Answer:
acceleration of the particle as a function of time is given as
and position of the particle as a function of time is given as
Explanation:
we have given,
at t=0, s=0
therefore initial velocity,u
u=v=
v=u+at.........(1)
we know from first equation of motion
let acceleration at time t be a(t), and position be x(t)
put value of v,u and a in equation 1
we got,
Therefore,acceleration of the particle as a function of time is given as
and position of the particle as a function of time is given as
For part 2 number 1:
first multiply 3.0 by 20 to get 60. Then multiply 3.0 y 10 to get 30. Add both answers together to get 90. The answer is 90 meters per second squared.