Determine the Force F required to hold the bar AB in a horizontal position on the smooth inclines shown in figure below. Also determine the reactions at A and B F 90 N 1.2 m 4.2 m 0.6 m. A B 60° 45°

I need help with this question (Not honor class) (Not grading)

1. Below the coefficient of kinetic friction on the plane is Hx = 0.4 . a) Draw the free body diagrams. b) Write down Newton's Laws for each block. c) Solve these equations for the acceleration of the blocks ? d) What is the acceleration? 5 kg 10 kg 0 = 15°

The bus you are riding on suddenly comes to a stop. Your body will tend to a) move against the back of your seat because of your weight. b) move forward because of inertia. c) remain at rest. d) move against the back of your seat because of inertia. 9.Which statement describes why a book resting on a table is in equilibrium? a) There is a net force acting downward on the book. b) The weight of the book is equal to the weight of the table. c) The acceleration due to gravity is 9.8 meter/sq. second for both the book and the table. d) The weight of the book and the table's upward force on the book are equal but opposite. 10. The weight of an object is the a) force with which it is attracted to the earth. b) same as the mass only expressed in different unit. c) quantity of matter it contains. d) same as inertia.

2. Referring to the figure below (m,-1400g, m2=2800g ), answer the following: ( a. Create a free-body diagram for both masses. b. Calculate the tension of the wire. c. Calculate the accelerations.

What design aspects of a snowmobile make it useful for traveling over ice and snow? Be sure to explain your answer fully and using the principles from Newton law and friction.

10. Imagine you are pushing a car: a. If you kept the force you exerted the same, but doubled the mass of the car, would the acceleration you achieve be twice as much or half as much or the same? b. If you pushed the original car twice as hard, would the acceleration you achieve be twice as much or half as much or the same as when you pushed it with your original force? 11. Predict where this balloon will go by drawing an arrow that represent the direction of its acceleration I

A 40. kg block is placed on a ramp inclined thirty degrees to the horizontal as seen in the figure below. A horizontal force of 35 Newtons is placed on the block. If the coefficient of static friction is: 4, = 0.65 will the block remain stationary on the ramp or will it slide? 1) Sketch a free-body-diagram for this situation, include an axis. 2) Analyze the free body diagram using Newtons 2nd law. 3) Calculate f 4) Calculate fi marc 5) Draw a conclusion (circle one) F The block slides down the ramp The block remains stationary 30.0⁰ The block slides up the ramp

5. What is the Free Body Diagram equation in Rectilinear Motion? Enter your answer 6. What is Curvilinear Motion? * Enter your answer

Assume the three blocks move on a frictionless surface and a 42-N force acts as shown on the 3.0-kg block. a. Draw a free-body diagram on each, account for every force (the basic diagram is attached below) b. Determine the acceleration of this system  c. the tension in the cord connecting the 3.0-kg and the 1.0-kg blocks