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Two blocks are connected by a massless rope over a massless, frictionless pulley, as shown in the figure. The mass of block 2 is 2=11.3 kg , and the coefficient of kinetic friction between block 2 and the incline is =0.200 . The angle of the incline is 31.5Ā° . If block 2 is moving up the incline at constant speed, what is the mass 1 of block 1?

Sagot :

snehashish65

The mass of block 1 is 1.30176 kg.

What is tension in physics?

A tension force in physics is a force developed in a rope, string, or cable when stretched under an applied force.

Tension is acted along the length of the rope/cable in a direction that is opposite to the force applied on it.

According to the question,

Mass of block 2= 11.3 kg

Kinetic friction Ī¼=0.200

The component of the weight in the direction of the incline

W = mā‚‚gsinĪø

T = [tex]F_{f} - W[/tex]........(1)

When the force of friction

[tex]F_{f}[/tex] = Ī¼[tex]_k[/tex]N

[tex]F_{f}[/tex] = Ī¼[tex]_k[/tex](mā‚‚gcosĪø)

Here , Put the value in equation 1

T = mā‚‚gcos 31.5Ā° - Ī¼[tex]_k[/tex]mā‚‚gcos 31.5Ā°

We know that ,

T - mā‚g = 0

T = mā‚g

So,

mā‚g = mā‚‚g (Sin 31.5Ā° - 0.200 x cos 31.5Ā°)

mā‚ = 11.3 x (0.0840 - 0.2 x 0.996)

mā‚ = 11.3 x (0.1152)

mā‚ = 1.30176 kg

Hence, the mass of block 1 is 1.30176 kg.

Learn more about tension here:https://brainly.com/question/14294135

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