Renee is on Spring Break and pulling her 21-kg suitcase through the airport at a constant speed of 0.47 m/s. She pulls on the strap with 120 N of force at an angle of 38° above the horizontal. Determine the normal force and the total resistance force (friction and air resistance) experienced by the suitcase.

A 100 kg block is at rest on a flat floor with a coefficient of static friction 0.62. A horizontal force of 3.7 N is applied to the block, but it does not budge. What is the magnitude of the frictional force on the block applied?

A man wants to move a heavy wooden crate (82 kg) across a wooden floor.  However, since he is taller than the crate, he must pull it using a rope that makes an angle of 42 degrees with the horizontal.  He exerts a force of 312 N as he pulls.  What is the Normal Force exerted by the floor on the crate? What is the size of the Friction Force felt by the crate, if the crate moves at a constant speed in a straight line? Imagine that instead the floor is more slick, so that the crate feels a friction force half of what you calculated above.  What is the crate’s acceleration?

A book slides across a level, carpeted floor with an initial speed of 3.85 m/s and comes to rest after 3.75 m. Calculate the coefficient of kinetic friction μ between the book and the carpet. Assume the only forces acting on the book are friction, weight. and the normal force. H =

You are pulling your luggage in an air port for an international flight. You know not to pack too much else they charge you extra fees so you weighted your luggage at home to be 22.0 kg. You exert a pull of 46 N in magnitude and at 24 degrees above the horizontal to ensure you can walk at a constant speed on the carpeted floor. What is the coefficient of friction between the caster wheels and the carpet?

A package of weather instruments is attached to a weather balloon. The package has a mass of 12.4 kg. The system is released vertically from rust. The weather balloon provides a constant lift force of 122.5 N for 6 minutes. calculate the magnitude and direction of the instruments acceleration during the first six minutes of flight ignore air resistance.

A block is placed on the midpoint of a ramp that is inclined at an angle of 39.8º from the horizontal, at which point the block immediately starts to slide down the ramp due to the fact that the static friction limit for this particular case is insufficient to hold the block in place. If the coefficient of kinetic friction between the block and the ramp is  0.277 , what is the magnitude of the acceleration of the block as it slides down the ramp.

A girl is sledding down a slope that is inclined at 30.0° with respect to the horizontal. The wind is aiding the motion by providing a steady force of 110. N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 73.0 kg, and the coefficient of kinetic friction between the snow and the runners of the sled is 0.190. How much time is required for the sled to travel down a 197-m slope, starting from rest? MO Units