A person exerts a horizontal force of 83 NN on the end of a door 72 cmcm wide.

A person exerts a horizontal force of 83 NN on the end of a door 72 cmcm wide.Part AWhat is the magnitude of the torque if the force is exerted perpendicular to the door?Express your answer using two significant figure

A person of mass 70 kg is connected by a rope at their waist to an anchor point on the building, where they remain stationary.What is the normal force acting on one of their feet? State your answer to two significant figures and give an appropriate unit.

What is the magnitude of the torque if the force is exerted at a 60.0 ∘∘ angle to the face of the door?Express your answer using two significant figures.

What should be the dimension of the door so that you can open the door easily without have difficulty (the force that you can apply on the door should be minimum)NOTE : All the dimensions are length*width*thickness and are in mm.*70*50*2050*20*1050*60*2040*30*10

Find the torque applied to a doorknob if a person applies a force of 18 N 80° from the axis of rotation, at a distance of 2.0 cm from the doorknob. use grade 12 knowledge