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A box is pulled up a rough ramp that makes an angle of 22 degrees with the horizontal surface. The surface of the ramp is the x-plane. What is the magnitude of the force of tension if the net force in the x direction of 98 N?

A.)57 N

B.)139 N 1

C.)78 N

D.)183 N



ANSWER: B 139

Respuesta :

Giangiglia

Answer:

[tex]T=98 N + m*9.8\frac{m}{s^2}*cos(22)[/tex]

Explanation:

The balance of forces in the x-plane:

[tex]T-P=98 N[/tex]

Where T is the force of tension and P is the wieght force

The weight in an inclined plane:

[tex]P=m*g*cos(a)[/tex]

Where m is the mass of the box, g is the gravity force and a is the angle ( in this case 22°).

[tex]T=98 N + m*9.8\frac{m}{s^2}*cos(22)[/tex]

charltont

Answer:

B.  139 N

Explanation:

Correct On Edge 2021