A woman at an airport is towing her 20kg suitcase at constant speed by pulling on the strap at an angle of @º above the horizontal with a force of 35N. There is a 20N resistive force acting opposite the direction of motion of the suitcase. a) Draw a free body diagram of the suitcase b) What is the angle 9 ? Ex= 35cos-20 = 20/35 = 55.2 degrees c) What is the magnitude of the Normal force N that the ground exerts on the suitcase? Ey = N + 35sin(55.2) – 196 = 0 Ey = 196 - 35sin(55.2) = 167 N d) the tension in the strap and the angle were the same? How would the problem change if the resistive force were only 18N, but

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.