c. What is the reaction force (type, direction, and object) corresponding to the rope pulling the trunk to the right? Give type of force, the direction of the reaction force, and what object the reaction force acts on. d. What is the reaction force corresponding to the Earth pulling down on the trunk? e. What is the reaction force corresponding to the force that prevents the trunk from sliding?
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- 1A. Create a force diagram of a system car and mass hanger as they move together? 1B. How does the acceleration of the car compare to the acceleration of the mass hanger? justify your answer. 1C. What causes the system to accelerate? 1E.Do you expect the acceleration of your system to be smaller than, greater than or equal to the acceleration due to gravity? Justify your answer. 1F.Using newtons second law and the diagram you created in question #1a give the acceleration of the system as a function of the masses of the cart and the hanger.A block with mass m = 7 kg is pushed with a force of = 50 N. Please answer F1 the following: A. Draw a body diagram representing all forces acting on the block. B. If the coefficient of static friction is = 0.4, does the block move? C. The block now starts moving, if the coefficient of kinetic friction is =0.1 μk find .Fk D. Find the acceleration. E. After t = 3 s , how far did the block move? (the initial position and initial Xi velocity are both zero)Vi F. What is the velocity at t= 3 s ?A girl pulls a wagon as shown with a force of 25 N, and mass of wagon is 10 kg. Assume that there is no friction. a. Draw Free-body diagram. b. Find the wagon's acceleratior c.
- 4. The masses of blocks A and B are 4.5 kg and 3.7 kg respectively. The blocks are initially at rest and are connected by a massless string passing over a massless, frictionless pulley. The system is released from rest.Draw a free-body diagram for each block showing all the applied forces in relative scale. Next to each diagram show the expected direction of acceleration. What is the acceleration of blocks? What is the tension force in the rope? How high will the 3.7 kg block move in the first 2.5 s? Find the speed of the 4.5 kg block at the end of 5th second.Two forces are acting on a 30 kg box. The first force is 25 N East, and the second force is 30 N West. a. Draw a free body diagram. b. What is the net force acting on the box? c. What is the acceleration of the box?A 16.0-kg mass and a 2.25-kg mass are connected by a light string over a massless, frictionless pulley.a) Draw the diagram of the system.b) Label all the forces acting on the two masses.c) What is the diagram drawn in (b) called?d) What is the acceleration of the system when released?
- 4. A block of mass m accelerates up a slope that has friction. a. Draw a free-body diagram for the block indicating all the forces acting on it. (Note that there must be a force acting on the block in order for it to accelerate up the slope.) b. Write down the equations for Newton's 2nd law for both x and y directions. c. Solve for the applied force Fap in terms of the angle of incline 0, mass m, acceleration of the block a, kinetic friction force fr, and acceleration of gravity g.On a separate occasion, Michael threatened to jump from the roof of hisoffice building as a demonstration of seasonal depression. If it takes 1.2seconds for his body to plummet to the ground,a. How fast will he be going when he reaches the ground?b. How far will he have fallen in meters?c. In feet?d. If Michael weighs 185 lbs, what would his force of collision with theground be, in Newtons, if his sudden deceleration upon impact takes0.1 seconds? ( 1 lb = 4.45 N, which means on Earth, a weight of 2.2lbs corresponds to a mass of 1 kg)Newton's Third Law of Motion 8. A horse pulls forward on a carriage with a given force. By Newton's third law, the carriage must be pulling on the horse backward with an equal and opposite force. Given this, what explains why the horse and carriage can move forward? a. The cart's force is only in reaction to the horse's force so it does not define direction of movement. b. The cart is rolling on wheels while the horse's hooves have traction with the ground c.The forward force of the horse is just big enough to overcome the backward force of the cart and start the cart forward
- A boy applies a horizontal force on a box such that it continues to move at constant velocity. Compare the force of the boy's push to the force of friction acting on the box. a. the boy's force is equal to the force of friction b. the boy's force is less than the force of friction c. the boy's force is much greater than the force of friction d. the boy's force is slightly greater than the force of friction1. What are the SI units of mass, acceleration, weight, and force? 2. List 3 types of contact forces and one long-range force (names and symbols). 3. What are the conditions for equilibrium (words and equations)? 4. A force is applied to a rope that is connected to two other ropes as shown. Draw a free body diagram for the O-ring connecting all 3 ropes and use Newton’s 1st Law to calculate the tensions in ropes 1 and 2.Which of the following statements is not one of Newton’s Laws on motion? a. In the absence of an unbalanced force, an object moves at constant velocityb. For any force there is always an equal but opposite reaction force.c. The force and the acceleration of a body are towards the same direction.