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3 years ago

What is kinematics...? anyone on?

Physics

2 answers:

mariarad [96]3 years ago

6 0

Answer:

Kinematics is the motion of objects without reference of forces that causes the motion in objects.

Explanation:

stiv31 [10]3 years ago

4 0

Answer:

Explanation:

kinematics, branch of physics and a subdivision of classical mechanics concerned with the geometrically possible motion of a body or system of bodies without consideration of the forces involved (i.e., causes and effects of the motions).

Hope it helps...... :)

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3 years ago

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A pulley with a radius of 3.0 cm and a rotational inertia of 4.5 x 10^-3 kg∙m2 is suspended from the ceiling. A rope passes over

solmaris [256]

Answer:

maximum kinetic energy is for Pulley

e) The pulley

Explanation:

Let 4 kg block is moving downwards with speed "v" so we can say that 2 kg block will move upwards with same speed "v"

Now we know that pulling is in pure rotational motion

so we will have

$\omega = \frac{v}{R}$

$\omega = \frac{v}{0.03}$

now kinetic energy of each is given as

For 4 kg block

$K_1 = \frac{1}{2}(4)(v^2) = 2v^2$

for 2 kg block

$K_2 = \frac{1}{2}(2)(v^2) = v^2$

For pulley

$K_3 = \frac{1}{2}I\omega^2$

$K_3 = \frac{1}{2}(4.5\times 10^{-3})\frac{(v^2)}{0.03^2}$

$K_3 = 2.5 v^2$

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3 years ago

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4 years ago

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What is kinematics...? anyone on?​

What is kinematics...? anyone on?