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PhysicsQ&A LibraryA 7.1 kg mass on a frictionless inclined surfaceis connected to a 2.4 kg mass. The pulley ismassless and frictionless, and the connectingstring is massless and does not stretch. The2.4 kg mass is acted upon by an upward forceof 8 N, and thus has a downward accelerationof only 4.8 m/s^2.The acceleration of gravity is 9.8 m/s^2.What is the tension in the connecting string? Answer in units of N.What is the angle θ? Answer in units of ◦Question

Asked Oct 30, 2019

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A 7.1 kg mass on a frictionless inclined surface

is connected to a 2.4 kg mass. The pulley is

massless and frictionless, and the connecting

string is massless and does not stretch. The

2.4 kg mass is acted upon by an upward force

of 8 N, and thus has a downward acceleration

of only 4.8 m/s^2.

The acceleration of gravity is 9.8 m/s^2.

What is the tension in the connecting string? Answer in units of N.

What is the angle θ? Answer in units of ◦

Step 1

Assuming to *θ* be the angle of the incline, for the 7.1 kg mass, the equation of motion is,

Step 2

For the 2.4 kg mass, the equation of motion is,

Step 3

From step 2, the t...

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