Answer:
14 newtons is the answer
Explanation:
because if they act in the same direction they are added together
Hi!
The linear velocity is given by:
v = ωR
And ω is given by: ω = 2π/T (where T is the time for 1 revolution)
Now, put these equations together:
v = 2πR/T
If it takes 5 seconds for 10 revolutions, then it takes 5/10 = 0.5 seconds for each revolution.
V = (2π * 2)/0.5
V = 4π/0.5
V = 8π rad/s
Then, we goes to the centripetal acceleration:
a = V²/R
a = 64π²/2
a = 32π² rad/s²
;)
Acceleration = (change in speed) / (time for the change)
Change in speed = (speed at the end) - (speed at the beginning)
= (140 km/hr) - (10 km/hr) = 130 km/hr
Time for the change = 50 sec
Acceleration = (130 km/hr) / (50 sec) = 2.6 km/hr per second.
To convert to more familiar units:
(2.6 km/hr-sec) x (1000 m/km) x (1 hr/3600 sec)
= (2.6 x 1000 x 1) / (3600) km-m-hr / hr-sec-km-sec
= 0.722 m/s² (about 0.074 of a G)
Hello there.
<span>Which of the following is an example of the concepts of growth and development functioning together? <span>
</span>
</span><span> C. Children learning to print their names
</span>
Answer:
Explanation:
Answer D. Interaction between a pen and paper while you write