A student of mass 59.4 kg, starting at rest, slides down a slide 23.2 m long, tilted at an angle of 28.1° with respect to the horizontal. If the coefficient of kinetic friction between the student and the slide is 0.113, find the force of kinetic friction, the acceleration, and the speed she is traveling when she reaches the bottom of the slide. (Enter the magnitudes.) (a) the force of kinetic friction (in N) N (b) the acceleration (in m/s2) m/s2 (c) the speed she is traveling (in m/s) m/s   HINTS: (a) First, find the normal force acting on the student and use that value to calculate the kinetic friction force. (b) Find the acceleration using the tilted x-component of Newton's second law. (c) Use kinematics to find her speed at the bottom of the slide.

At a post office, a parcel that is an m kg box slides down a ramp inclined at an angle θ with the horizontal, as shown. The coefficient of kinetic friction between the box and the ramp is μK, and the coefficient of static friction for the same is μS. Notice that the coordinate axes have been chosen with the x axis directed up the incline, as shown. Enter a numeric answer for the magnitude of the acceleration in meters per squared seconds when the angle of the incline is 21° and the coefficient of kinetic friction is 0.055. Kinematics may help you here.  Using the numbers from the previous step, give a numeric answer for the time in seconds that elapse when the package, initially at rest, travels a distance of 4.5 m down the ramp.  Using the numbers from the previous steps, give a numeric answer for the speed of the package at the moment it has traveled a distance of 4.5 m down the ramp.

A 2.20-kg block starts from rest at the top of a 30.0° incline and slides a distance of 1.90 m down the incline in 1.80 s. (a) Find the magnitude of the acceleration of the block. (b) Find the coefficient of kinetic friction between block and plane. (c) Find the friction force acting on the block. magnitude_______? Direction______? (d) Find the speed of the block after it has slid 1.90 m.

A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 24.1° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 48.9 kg, and the coefficient of kinetic friction between the skis and the snow is 0.126. Find the magnitude of the force that the tow bar exerts on the skier. Number i Units

a sled, with a mass=6.50kg, is sliding down a snow-covered hill that has a slope of 45.0 degrees. there is an applied force pushing down on the sled perpendicular to the incline of 80.4N. the coefficient of kinetic friction between the sled and the snow is .100. determine the acceleration of the sled down the slope. report your answer is meters per second squared, but only enter the numerical value.

A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 25.0° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.0 kg , and the coefficient of kinetic friction between the skis and the snow is 0.120. Find the magnitude of the force that the tow bar exerts on the skier.

A box of mass m = 20.0 kg is pulled up a ramp that is inclined at an angle 0 15.0° angle with respect to the horizontal. The coefficient of kinetic friction between the box and the ramp is µk = 0.285, and the rope pulling the box is parallel to the ramp. If the box accelerates up the ramp at a rate of a 2.89 m/s?, calculate the tension Fr in the rope. Use g = 9.81 m/s² for the acceleration due to gravity. FT = 150.95 N

A person pushes horizontally with a force of 200. N on a 56.0 kg crate to move it across a level floor. The coefficient of kinetic friction is 0.19. (a) What is the magnitude of the frictional force? (b) What is the magnitude of the crate's acceleration?

A block of mass = 50.0 kg is being dragged at a constant velocity across a floor by a strong person pulling it with a rope. The rope makes an angle of 300 with the horizontal. The tension in the rope is 50.0 Newtons. Assume a real floor, with friction. What is the coefficient of kinetic friction between the box and the floor?

A child is pulling a red wagon full of toys (total mass is 8.15 kg). His pull is 30 N in magnitude and at 22 degrees above the horizontal. He pulls his wagon at a constant acceleration (could be positive or negative). The coefficient of friction between the wagon's wheels and the ground is 0.33. What is the wagon's acceleration?