kg box sits on a table and a person pushes straight down on it with 10...
A person pushes a 100-kg box along a frictionless horizontal surface. The person applies a force of 10 N at an angle of 30o below the +x-axis. a) Draw a free body diagram. b) Write down the equations for the forces in the x- and y-directions. c) Find the acceleration of the box.
6. A person wants to push a 110-kg box across the floor. The coefficient of friction between the box and the floor is 0.61. a. What is the normal force experienced by the box at rest(N)? b. If the person pushes against the box with 500N of force but at an angle of 20 relative to the horizontal, what is the normal force experienced by the box in (N)? c. With no applied force, what is the frictional force of...
A 20 kg box sits on a flat table. You pull horizontally (relative to the table surface) on a rope attached to the box. It just begins to slip when you pull 20 N. What is the coefficient of static friction (us) between the box and the table?
11) Bob is moving a 15 kg box along a horizontal floor, by pushing down on the box at an angle = 30° below the horizontal with a force of F = 80 N and there is a frictional force of 50 N acting on the box as he pushes. What is the horizontal acceleration of the box? box 12) Using the same information in the above problem, Bob is moving a 15 kg box along a horizontal floor, by...
a 12 kg box sits on a horizontal table. a string with tension 30.4 N pulls on the box to the right, but static friction between the box and the table prevents the box from moving. the coefficient of static friction between the box and table is 0.43. what is the magnitude of the static friction force on the box?
A 12.1 kg box sits on a horizontal table. A string with tension 24.9 N pulls on the box to the right, but static friction between the box and the table prevents the box from moving. The coefficient of static friction between the box and the table is 0.35. What is the magnitude of the static friction force on the box?
3. A worker pushes constantly downward on a box of mass 43.0 kg with a force of 230 N at an angle of 26.0° from the horizontal. The box starts from rest and moves across a level floor for a distance of 3.66 m. The coefficient of kinetic friction is -0.384 230 N 43.66 m a) Show that the normal force on the box is 522 N. b) Find the force of friction on the box. c) What is the...
A person pushes a 10 kg cart from rest a distance of 5 m with a constant horizontal force of 10 N. Assuming a frictionless surface, determine the cart’s change in kinetic energy and its final velocity.
A storeho use worker pushes a box with a refrigerator (mass:96.0-kg) at constant velocity for a distance of 11.0 m. He pushes in the direction parallel to the horizontal floor. A 250.0-N frictional force opposes the motion of the box. Use Newtons second law and definition of work to answer the questions below. (a) (1 point) What is the acceleration of the box? as (b) (2 points) What is the net force, acting on the box? Write down Newtons second...
a 20.0-kg box rests on a table. a) what is the weight of the box and the normal force acting on it? b) a 10.0-kg box is placed on top of the 20.-kg box. determine the normal force that the table exerts on the 20.0-kg box and the normal force that the 20.0-kg box exerts on the 10.0-kg box