

please use energy methods in solution. Thanks. 2. The spring shown has a spring constant of...
You push a 2.5 kg block against a spring, compressing the spring by 35 cm. Then you release the block, and the spring sends it sliding up the inclined plane. The spring constant is. k = 197 N/m and the coefficient of kinetic friction is, mu_k = 0.31, theta = 38 degree. How far along the incline does the block slide from the compressed position when it is released?
A 2.7-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.54 m above the lowest part of the slide and the spring constant is 453 N/m. (a) What is the block's speed when it is at a height of 0.25 m above the base of the slide? (b) How far is...
A 2-kg block is pushed against a spring with spring-constant k 512 N/m, compressing it 0.25 m. When the block is released, it moves along a frictionless, horizontal surface and then up a frictionless incline with slope 53.1° (a) What is the speed of the block as it slides along the horizontal surface after having left the spring? (b) How far does the block travel up the incline before starting to slide back down?
An m = 2.0kg block sits next to a compressed spring with spring constant k = 4.5N/m. The spring is compressed by x = 3.0m. The spring is released and pushes the box along a surface with no friction. Once freely sliding the block transitions to a ramp with an angle 35 above the horizontal. On the ramp the block experiences a constant force of friction with a coefficient of kinetic friction of μ = 0.15. How far along the ramp’s surface does the block...
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3. A block of mass m 1.9 kg is held against a spring of spring constant k 410 and compressed 0.75 m. When released, it is pushed along the frictionless surface towards mi rebounds mass m 4.3 kg. The two masses collide and mass towards the spring at a speed of 2.1 m/s, while mass m slides back towards the spring at a sp a. What is the speed of mass mi right before the collision? b. What is...
A block of mass 1.5 kg is attached to a horizontal spring that has a force constant of 1.70 103 N/m, and is free to slide on a frictionless surface as shown. The spring is compressed to xi = −9.5 cm by pushing on the block, and then the block is released. Find the work done by initially compressing the spring? Find the kinetic energy of the block when it reaches x = 0? Find the speed of the block...
A spring is used to fire a 100-g block horizontally. The spring has a spring constant of 20 N/m and is initially compressed by 5.0 cm. The block is initially at rest. a) What is the initial elastic potential energy? b) The spring is released. The block leaves the spring when the spring is at its relaxed state. What is the kinetic energy of the block as it leaves the spring? c) After the block leaves the spring, it enter...
A block of mass 1.8 kg is attached to a horizontal spring that has a force constant 900 N/m as shown in the figure below. The spring is compressed 2.0 cm and is then released from rest. (a) A constant friction force of 3.4 N retards the block's motion from the moment it is released. How much is the spring compressed when the speed of the block is a maximum. (b) What is the maximum speed?
A block of mass 3 kg is pushed against a spring of spring constant 3000 N/m. Initially, the spring is compressed by a distance of 0.220 m, when the block is released from rest and travels along a horizontal frictionless surface before encountering a frictionless ramp, inclined at an angle of 37° above the horizontal. How far along the ramp does the block travel before momentarily coming to rest?
can someone solve all parts please
The 30 kg mass has a speed of 2m/sec in the position shown and a constant force of 20N is applied on it as shown and this force is acting on the mass for another 3 meters down the incline and then disappears. After another 7 meters the mass hits a loss of energy at impact to spring and Dynamic Friction coefficient is 0.25 Spring Constant is 200 kN/m A) What is the speed...