A block of mass m = 0.26 kg slides with initial velocity vo m/s along a frictionless surface (as in the figure). The block next slides through a region of length d= 0.19 m with kinetic friction. After passing through the friction region, the block slides up a curved ramp until momentarily coming to rest at a height h above the level surface. If the kinetic friction coefficient μk = 0.126 and the block reaches height h = 0.11 m above the initial level, what was its initial velocity vo? Express the answer in m/s but enter only the numerical part in the box. m h

In the figure, a 4.2 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo = 6.5 m/s, the height difference is h = 1.1 m, and k = 0.593. Find d. Number Units μ=0- -μk

A pendulum consists of a small object hanging from the ceiling at the end of a string of negligible mass. The string has a length of 0.80m. With the string hanging vertically, the object is given an initial velocity of 1.9 m/s parallel to the ground and swings upward in a circular arc. Eventually, the object comes to a momentary halt at a point where the string makes an angle with with it's initial vertical orientation and then swings back downward. Find the angle.

A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of 0.28 at a speed of 7 m/s.  After sliding a distance of 1.4 m the block makes a smooth transition to a ramp with a coefficient of kinetic friction of 0.28.  How far up the ramp does the block travelled before coming to a momentary stop.

A chain with length b and mass M is hang on ceiling under constant gravity g. Find the tension at point A when the distance between the ceiling and B is x for each casese. (1) The chain free falls. (2) Energy is conserved. A B CM T A B t=0 time t> 0 CM

A block of mass 11.0 kg slides from rest down a frictionless 36.0° incline and is stopped by a strong spring with  k = 2.30 ✕ 104 N/m.  The block slides 3.00 m from the point of release to the point where it comes to rest against the spring. When the block comes to rest, how far has the spring been compressed?

A block weighing 2.50 kg begins its motion from a stationary position at point A, located at the highest point of a frictionless ramp. The ramp is inclined at an angle of 40° relative to the horizontal and has a length of 1.50 m. As the block slides down the ramp, it reaches a region between point B and point C, which is a rough horizontal surface with a kinetic friction coefficient of 0.30. After covering a distance of 1.00 m on the horizontal surface, the block encounters a lightweight spring with a spring constant of 900 N/m. Find the speed of the block at point B?

A 5.2 × 105 kg train is brought to a halt from a speed of 0.65 m/s in 0.45 m by a large spring bumper at the edge of its track. What is the force constant k of the spring in N/m?

In the figure, a 3.9 kg block slides along a track from one level to a higher level after passing through an intermediate valley. The track is frictionless until the block reaches the higher level. There a frictional force stops the block in a distance d. The block's initial speed is vo = 6.6 m/s, the height difference is h = 1.0 m, and Uk = 0.553. Find d. Number Mo Units μ = 0 -μk

Can you help me with this problem?A block with a mass m is initially compressing a spring by x1 on a horizontal floor with friction. The spring has a spring constant k. The block is realeased from rest and travels a total distance of D including x1 and has a speed of v. what is the coefficent of kinetic friction between the floor and block?