Answer:
15√2 N
Explanation:
The acceleration is given by ...
a = F/m = 5t/5 = t . . . . meters/second^2
The velocity is the integral of acceleration:
v = ∫a·dt = (1/2)t^2
This will be 9 m/s when ...
9 = (1/2)t^2
t = √18 . . . . seconds
And the force at that time is ...
F = 5(√18) = 15√2 . . . . newtons
It depends on what the model looks like, we cant solve it when th model is not present
Answer:
The acceleration of a point on the wheel is 11.43 m/s² acting radially inward.
Explanation:
The centripetal acceleration acts on a body when it is performing a circular motion.
Here, a point on the bicycle is performing circular motion as the rotation of the wheel produces a circular motion.
The centripetal acceleration of a point moving with a velocity 
and at a distance of 
from the axis of rotation is given as:
Here, 
∴ 
Therefore, the acceleration of a point on the wheel is 11.43 m/s² acting radially inward.
Answer:
Option C
The toe can become an earthflow.
Explanation:
During wet weather especially winter season when snow is melting, the downhill toe of a slump is likely to become earthflow. It's incorrect to say that the toe turns into rock avalanche neither can the toe collapse and be deposited as a talus at the base of the slope. Despite the melting ice making clay sticky, the toe can't stop due to continued mass wasting that occurs. Therefore, the right answer is option C, <u>The toe can become an earthflow</u>
