PLS HELP WILL MARK BRAINLIEST IF RIGHT NEED IMMEDIATELY PLEASEEEEE
2 answers:
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Answer:
False
Explanation:
The torque exerted by a force is given by:
where
F is the magnitude of the force
d is the distance between the point of application of the force and the pivot
is the angle between the directions of F and d
We see that the magnitude of the torque depends on 3 factors. In this problem, we have 2 forces of equal magnitude (so, equal F). Moreover, one of the forces (let's call it force 1) acts farther from the pivot than force 2, so we have
However, this does not mean that force 1 produces a greater torque. In fact, it also depends on the angle at which the force is applied. For instance, if the first force is applied parallel to d, then we have
and the torque produced by this force would be zero.
So, the statement is false.
Answer:
The maximum displacement, the frequency, and the time required for one cycle are 1/5 inch, 1/π Hz and π sec.
Explanation:
Given that,
The equation of simple harmonic motion
.....(I)
We need to calculate the maximum amplitude
Using equation of simple harmonic motion
Where, a = amplitude
=frequency
t = time
On comparing equation (I) and general equation
The amplitude is a maximum displacement traveled by a wave.
So, the maximum displacement is
We need to calculate the frequency
We need to calculate the time required for one cycle
Hence, The maximum displacement, the frequency, and the time required for one cycle are 1/5 inch, 1/π\ Hz and π\ sec.
Answer:
Explanation:
The centripetal acceleration of a point moving by circular motion is given by:
where
is the angular velocity
r is the distance from the axis of rotation
The point on the wheel makes 5.0 revolutions per second, so the frequency is
and the angular velocity is
While the distance of the point from the axis of rotation is
Substituting, we find the acceleration: