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Sergio [31]
3 years ago
13

If an object is accelerating, it is traveling the same distance for each time interval of its motion

Physics
2 answers:
Elenna [48]3 years ago
6 0
The answer is false :)
Anika [276]3 years ago
4 0

Answer:

false

Explanation:

if an object is accelerating the object will not travel the same distance every time interval

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A flywheel in the form of a uniformly thick disk of radius 1.33 m1.33 m has a mass of 70.6 kg70.6 kg and spins counterclockwise
ladessa [460]

Answer:

The constant torque required to stop the disk is 8.6 N-m in clockwise direction .

Explanation:

Let counterclockwise be positive direction and clockwise be negative direction .

Given

Radius of disk , r = 1.33 m

Mass of disc , m = 70.6 kg

Initial angular velocity , \omega_i =217 rpm

Final angular velocity , \omega_f =0\, rpm

Time taken to stop , t = 2.75 min

Let \alpha  be the angular acceleration

We know

\omega _f=\omega _i+\alpha t

=>0=217+2.75\alpha =>\alpha = -78.9\frac{rev}{min^{2}}

=>\alpha =-\frac{78.9\times 2\pi}{60\times 60}\frac{rad}{s^{2}}=-0.138 \frac{rad}{s^{2}}

Torque required to stop is given by

\tau =I\alpha

where  moment of inertia , I=\frac{mr^{2}}{2}=\frac{70.6\times 1.33^{2}}{2}kg.m^{2}=62.5 kg.m^{2}

=>\therefore \tau =-0.138\times 62.5\, N.m=-8.6\, N.m

Thus the constant torque required to stop the disk is 8.6 N-m in clockwise direction .

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When an electric drill is used to bore a hole into a wooden beam, the user notices that the drill bit gets very hot.
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Explanation:

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