m = 1.10 kg,
= 0.380
(a)
tan() =
tan() = 0.380
= 20.80o
(b)
Net force along vertical direction is zero
Normal force FN = m*g*cos()
Net force along horizontal direction is zero
T = fK = *FN
T = 0.380*1.10*9.8*cos(20.80)
T = 3.82 N
A 1.10 kg toaster is not plugged in. The coefficient of static friction between the toaster...
An 1 kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal counter-top is 0.3. To make the toaster star moving, you carefully pull on its electric cord. For the cord tension to be as small as possible, you should pull at what angle above the horizontal? State your answer to the nearest tenth of a degree.
A heavy sled is being pulled by two people. The coefficient of static friction between the sled and the ground is μs = 0.595 and the kinetic friction coefficient is μk = 0.403. The combined mas of the sled and its load is m =276 kg. The ropes are separated by an angle φ = 27 degrees, and they make and angle of θ = 30.8 degrees with the horizontal. assuming both ropes pull equally hard, a) what is the...
1. A 500 kg wooden crate is on a wooden floor.The coefficient of static friction is 0.3. What is the minimum magnitude of a horizontal force needed to start it moving?
A 500 kg wooden crate is on a wooden floor.The coefficient of static friction is 0.3. What is the minimum magnitude of a horizontal force needed to start it moving? THIS QUESTION: What for is needed to keep the crate in question # 1 moving?
Friction coefficient of friction support force, sliding or static coefficient F and angle in polar format F cos-angle and F sin-angle in Cartesian x y format Vector and angle in polar format - Vector cos-angle and Vector sin-angle in Cartesian x-y format Force, velocity, acceleration are vector examples A system consisted of two objects sitting on a floor, a 15 kg object on top with a 50 kg object at the bottom. The sliding coefficient of friction between the two...
If the coefficient of static friction between a box and the floor is 0.35 with what horizontal force does someone need to pull to get the box to move? The mass of the box is 28 kg.
- A 3.1-kg flower pot sits on the ground. The coefficient of static friction between the flower pot and the ground is 0.54. Maria pushes the flower pot with a force of 5.2 Newtons, but it does not move. How strong is the static friction? -A 1.6-kg book sits on a table. The coefficient of static friction between the book and the table is 0.39. What is the hardest you can push on the book without it moving?
A mass of 10 kg is placed on an incline with a coefficient of static friction of 1.59 and coefficient of kinetic friction of 1.21. No additional forces are acting on it and it is raised slowly from a small angle and it begins to slide at some angle. If 10 degrees is added to this angle, and the mass started from rest from a vertical height of 33 meters, how much longer would it take to travel down the...
A mass of 8 kg is placed on an incline with a coefficient of static friction of 1.72 and coefficient of kinetic friction of 1.33. No additional forces are acting on it and it is raised slowly from a small angle and it begins to slide at some angle. If 10 degrees is added to this angle, and the mass started from rest from a vertical height of 32 meters, how much longer would it take to travel down the...
A mass of 9 kg rests on a floor with a coefficient of static friction of 1.25 and coefficient of kinetic friction of kinetic friction of 0.1. One force is applied vertically downward of 10 Newtons and another force is applied at an angle of 15 degrees below the horizontal. Calculate what the magnitude this force needs to be in order to begin to move the mass. If the same amount of force is applied at the same angle above...