Homework Answers
A 7.4kg block starts 1.2m above the ground, at the top of a frictionless ramp. At...
A 7.4kg block starts 1.2m above the ground, at the top of a frictionless ramp. At the bottom of the ramp is a flat stretch of rough (ulk = 0.15) ground 3.0m long. After sliding 3.0m, the ground becomes frictionless, and the block hits a spring (k = 1.6kN/m). a. Calculate the speed of the block at the bottom of the ramp. m b. Calculate the speed of the block just before it hits the spring. c. Calculate how far...
(S points) A o.5 kg block slides along a horizontal frictionless surface at 2.0 m/s. It...
(S points) A o.5 kg block slides along a horizontal frictionless surface at 2.0 m/s. It is brought to rest by compressing a ve 16. sed long spring of spring constant 800 N/m. How far does the spring get compressed (in cm)? 17. (5 points) A block is released from rest at point P. h2 50 m high, and slides along the frictionless track shown. What is its speed at pointō匹=40 m high? h1 h2 ground level
A 0.458-kg box is placed in contact with a spring of stiffness 4.657×102 N/m. The spring...
A 0.458-kg box is placed in contact with a spring of stiffness 4.657×102 N/m. The spring is compressed 1.06×10-1 m from its unstrained length. The spring is then released, the block slides across a frictionless tabletop, and it flies through the air. The tabletop is a height of 1.400 m above the floor. What is the potential energy stored in the spring when it is compressed? What is the kinetic energy of the block just before it leaves the table...
Springing Off the Table Due this Friday, Nov 13 at 11:59 pm (EST) A 0.272-kg box...
Springing Off the Table
Due this Friday, Nov 13 at 11:59 pm (EST)
A 0.272-kg box is placed in contact with a spring of stiffness
4.352×102 N/m. The spring is compressed 1.08×10-1 m from its
unstrained length. The spring is then released, the block slides
across a frictionless tabletop, and it flies through the air. The
tabletop is a height of 1.060 m above the floor.
[mass_spring_table]
(the drawing is not to scale) What is the potential energy stored
in...
A block with mass m = 14 kg rests on a frictionless table and is accelerated...
A block with mass m = 14 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4174 N/m after being compressed a distance x1 = 0.512 m from the spring’s unstretched length. The floor is frictionless except for a rough patch a distance d = 2.7 m long. For this rough path, the coefficient of friction is μk = 0.44. 1) How much work is done by the spring as it accelerates...
Use work and energy to find an expression for the speed of the block just before...
Use work and energy to find an expression for the speed of the block just before it hits the floor if: the coefficient of kinetic friction for the block on the table is mu_k. the table is frictionless. A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide horizontal stir face, then hits a horizontal spring with spring constant 500 N/m. The other end of the spring is anchored against a wall. The ground...
rri 482 Figure 6.26 Problem 6.40 (c6p40) A block of mass m300 g is released from...
rri 482 Figure 6.26 Problem 6.40 (c6p40) A block of mass m300 g is released from rest and slides down a frictionless track of height h 78.4 cm. At the bottom of the track the block slides freely along a horizontal table until it hits a spring attached to a heavy, immovable wall. The spring compressed by 2.63 cm at the maximum compression. What is the value of the spring constant k?
A block with mass m = 16 kg rests on a frictionless table and is accelerated...
A block with mass m = 16 kg rests on a frictionless table and is accelerated by a spring with spring constant k = 4850 N/m after being compressed a distance x1 = 0.51 m from the spring’s unstretched length. The floor is frictionless except for a rough patch a distance d = 2.5 m long. For this rough path, the coefficient of friction is μk = 0.45. How much work is done by the spring as it accelerates the...
(10 points) A block of mass m = 0.80 kg is held in place against a...
(10 points) A block of mass m = 0.80 kg is held in place against a spring with spring constant k = 3000 N/m, compressing it a distance of 0.022 m. The block is released from rest and is projected to the right and down a ramp of height h = 1.5 m, as shown in the figure below. The entire surface is frictionless until point B, after which the coefficient of friction between the block and the surface is...
A block of mass m = 2.75 kg slides along a horizontal table with speed v0...
A block of mass m = 2.75 kg slides along a horizontal table with speed v0 = 1.00 m/s. At x = 0 it hits a spring with spring constant k = 82.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by μ = 0.100. How far has the spring compressed by the time the block first momentarily comes to rest?
A 7.4kg block starts 1.2m above the ground, at the top of a frictionless ramp. At the bottom of the ramp is a flat stretch of rough (ulk = 0.15) ground 3.0m long. After sliding 3.0m, the ground becomes frictionless, and the block hits a spring (k = 1.6kN/m). a. Calculate the speed of the block at the bottom of the ramp. m b. Calculate the speed of the block just before it hits the spring. c. Calculate how far...
(S points) A o.5 kg block slides along a horizontal frictionless surface at 2.0 m/s. It is brought to rest by compressing a ve 16. sed long spring of spring constant 800 N/m. How far does the spring get compressed (in cm)? 17. (5 points) A block is released from rest at point P. h2 50 m high, and slides along the frictionless track shown. What is its speed at pointō匹=40 m high? h1 h2 ground level
Springing Off the Table
Due this Friday, Nov 13 at 11:59 pm (EST)
A 0.272-kg box is placed in contact with a spring of stiffness
4.352×102 N/m. The spring is compressed 1.08×10-1 m from its
unstrained length. The spring is then released, the block slides
across a frictionless tabletop, and it flies through the air. The
tabletop is a height of 1.060 m above the floor.
[mass_spring_table]
(the drawing is not to scale) What is the potential energy stored
in...
Use work and energy to find an expression for the speed of the block just before it hits the floor if: the coefficient of kinetic friction for the block on the table is mu_k. the table is frictionless. A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide horizontal stir face, then hits a horizontal spring with spring constant 500 N/m. The other end of the spring is anchored against a wall. The ground...
rri 482 Figure 6.26 Problem 6.40 (c6p40) A block of mass m300 g is released from rest and slides down a frictionless track of height h 78.4 cm. At the bottom of the track the block slides freely along a horizontal table until it hits a spring attached to a heavy, immovable wall. The spring compressed by 2.63 cm at the maximum compression. What is the value of the spring constant k?
(10 points) A block of mass m = 0.80 kg is held in place against a spring with spring constant k = 3000 N/m, compressing it a distance of 0.022 m. The block is released from rest and is projected to the right and down a ramp of height h = 1.5 m, as shown in the figure below. The entire surface is frictionless until point B, after which the coefficient of friction between the block and the surface is...
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