In opening a door,a person pushes at a point on the door 65 cm away from the hinges with a force of 50 N that is directed at an angle of 75 $\circ$ with respect to the surface of the door.The torque on the door about its hinges is
A)32.5 Nm.
B)8.41 Nm.
C)40.2 Nm.
D)48.3 Nm.
E)31.4 Nm.

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The Answer of In opening a door,a person pushes at a point on the door 65 cm away from the hinges with a force of 50 N that is directed at an angle of 75 $\circ$ with respect to the surface of the door.The torque on the door about its hinges is
A)32.5 Nm.
B)8.41 Nm.
C)40.2 Nm.
D)48.3 Nm.
E)31.4 Nm.

In Opening a Door,a Person Pushes at a Point on the Door