5. A small mass m starts from rest and slides from the top of a fixed...
. A small mass m starts from rest and slides from the top of a fixed sphere of radius r (b) Suppose there is friction between the mass and the sphere with friction coefficient μ,-0.1. what is the minimum angle Emin at which the mass will start to slide along the sphere? (c) The mass is now placed just past this minimum angle and released. The coefficient of kinetic friction k is small but not zero. Does the mass fly...
As shown below (not to scale), a block of mass starts from rest and slides down a frictionless ramp of height h. Upon reaching the bottom of the ramp, it continues to slide across a flat frictionless surface. It then crosses a "rough patch" on the surface of length d=10m. This rough patch has a coefficient of kinetic friction uK=.1. After crossing the rough patch, the block's final speed is vf=2m/s. What is the height of the ramp? Hint: I...
A block of mass m starts from rest and slides down from the top of a wedge of height h and length d. The surface of the wedge forms an angle of ? with respect to the horizontal direction. The force of kinetic friction between the block and the wedge is f. How fast is the block traveling when it reaches the bottom of the wedge?
A person starts from rest at the top of a large frictionless spherical surface, and slides into the water below (see the drawing). At what angle theta does the person leave the surface? At what speed does the person enter the water?
1 45 kg is released from rest from the top of a rough ramp, with Mass - coefficient of kinetic friction 0.25 between the block and the incline, of height 3.2 m and length d 5.5 m. At the bottom of the ramp, the mass slides on a horizontal, frictionless surface until it compresses a spring of spring constant k 2. 110 N/m. a. Calculate the speed of the mass at the bottom of the ramp? b. How far does...
An object with a mass, m = 5 kg, is released from rest at the top of the ramp. The length of the ramp is 2.3 m. The object slides down the ramp reaching a speed of 2.1 m/s at the bottom. a) If the friction force between the ramp and the object is 3 N, find the angle between the ramp and the horizontal theta (in degrees). b) What speed (in m/s) does the object reach at the bottom...
block starts from rest at the top of a 30.0° incline and slides 2.00 m down the incline in 1.75s. a) Find the acceleration of the block b) Find the speed of the block after it has slid 2.00 m c) Find the frictional force acting on the block d) Find the normal contact force e) Find the coefficient of kinetic friction
A mass 3 kg is released from rest at a height of 5 meters and slides down a frictionless curve. There is a patch that is 3 meters long with a kinetic coefficient of 0.2. Beyond that friction patch is a spring with a spring constant of 400 N/m. (There is no friction under the spring.) Calculate the maximum compression distance (x) needed to stop the mass the first time It compresses the spring. Calculate where exactly the mass stops...
Example2 25k A solid sphere (mass M, radius R) is released from rest at the top of an inclined plane (angle ?). There is sufficient friction between the incline and the sphere to allow it to roll without slipping. (a) Draw and FBD for the sphere. (b) Find the linear acceleration of the sphere (c) Find the magnitude of the frictional force acting on the sphere. (d) Find the minimum required coefficient of friction to keep the sphere from slipping....
A 3.00kg block starts from rest at the top of a 30.0 degree incline and slides a distance of 2.00m down the incline in 1.50s. Find (a)the magnitude of the acceleration of the block, (b) the coefficient of kinetic friction between block and plane, (c) the friction force acting on the block and (d) the speed of the block after it has slid 2.00m.