Please answer each question with step by step answers so I understand the solutions. Thanks!

1. The imperial units for mass is slugs, for length is feet and for time is seconds. The imperial units for force is a pound. What is a pound in terms of slugs, feet and seconds?

2. A box is on a sled. The sled is pulled up a hill as shown. The box does not slide off the sled. Draw the LABELED free body for the sled and for the box. Make sure that your diagram obeys Newton's third law and that action-reaction pairs are given the same label.

(FOR DIAGRAM PLEASE SEE ATTACHMENT)

3. Ann and Bob push on the the two boxes shown. Ann pushes on box 1 with a 60 Newton force. Bob pushes on box 2 with a 90 Newtons force. Box 1 has a mass of 30kg and box 2 has a mass of 40 kg. The floor exerts a friction force on box 2 of 20 Newtons to the right. The coefficient of static friction between the box and the floor is 0.7. Determine the friction force between the floor and box 1.

This solution is provided in 349 words in an attached .doc and .jpg file. It uses Newton's second law to define force. It also finds equilibrium using equations for friction and force, and finally calculates frictional force.

... and diagrams to aid you in understanding the Solution to these questions. 6. A 25-kg mass is supported by ropes as shown. Draw a free-body diagram of the "knot ...

... a. Free body diagrams The forces acting on the block of mass m1= 8.0 kg are the tension in the ... Thus the free body diagram for the first block can be drawn as. ...

... The rope on the left has a tension T1 = 10.0 N. (A) Draw a free-body diagram of the knot where the three ropes meet. ... Draw the necessary free-body diagram. ...

... Calculations and diagrams are provided. ... Physical representationIdentify all forces acting on the object and show them on a free-body diagram. ...

... 39. A 9.3 kg child sits in a 3.7 kg high chair. (a) Draw a free body diagram for the child and find the normal force exerted by the chair on the chills. ...

... Step wise calculations are explained. Attached docx file contains solution with illustrated diagrams. ... Let us draw a free body diagram for both of them. ...

... a. Draw a free-body diagram for the toolbox. b. Before the elevator ... negligible friction. a. Draw a free-body diagram for the toolbox. b. Before ...

... (Negative because it is towards left) Now considering free body diagram for the upper block As the block is in equilibrium in vertical direction the normal ...