Problem 5: A block of mass m = 4.5 kg is attached to a spring with spring constant k = 81 N/m. It is initially at rest on an inclined plane that is at an angle of 0 = 28° with respect to the orizontal, and the coefficient of kinetic friction between the block and the plane is ug = 0.19. In th nitial position, where the spring is compressed by a distance of d= 0.18 m, the mass is at its lowes position and the spring is compressed the maximum amount. Take the initial gravitational energy o he block as zero.
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- Problem 7: A block of mass m = 2.5 kg is attached to a spring with spring constant k = 980 N/m. It is initially at rest on an inclined plane that is at an angle of 0 = 25° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uz = 0.13. In the initial position, where the spring is compressed by a distance of d = 0.15 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero. MProblem 7: A block of mass m = 2.5 kg is attached to a spring with spring constant k = 980 N/m. It is initially at rest on an inclined plane that is at an angle of 0 = 25° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is u = 0.13. In the initial position, where the spring is compressed by a distance of d = 0.15 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero. I dl MA block of mass m = 4.5 kg is attached to a spring with spring constant k = 830 N/m. It is initially at rest on an inclined plane that is at an angle of θ = 26° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. In the initial position, where the spring is compressed by a distance of d = 0.11 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero. A). What is the block's initial mechanical energy, E0 in J? B). If the spring pushes the block up the incline, what distance, L in meters, will the block travel before coming to rest? The spring remains attached to both the block and the fixed wall throughout its motion.
- an object with mass m shown in the figure is attached to a spring with a spring constant k in a horizontal arrangement without friction, and the object is compressed as much as d. After the system is released, the object can rise to the height of h in the friction inclined plane. find the coefficient of kinetic friction between the oblique order and the body?A block of mass m = 2.5 kg is attached to a spring with spring constant k = 890 N/m. It is initially at rest on an inclined plane that is at an angle of θ = 29° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.18. In the initial position, where the spring is compressed by a distance of d = 0.11 m, the mass is at its lowest position and the spring is compressed the maximum amount. Take the initial gravitational energy of the block as zero. 1. What is the block's initial mechanical energy, E0 in J? 2.If the spring pushes the block up the incline, what distance, L in meters, will the block travel before coming to rest? The spring remains attached to both the block and the fixed wall throughout its motion.A block of mass m = 2.20 kg slides along a horizontal table with velocity vo = 2.00 m/s. At x = 0, it hits a spring with www spring constant k = 27.00 N/m and it also begins to experience a friction force. The coefficient of friction is given by u = 0.400. How far has the spring compressed by Ax the time the block first momentarily comes to rest? Assume the positive direction is to the right. Ax = m
- When a 3.5 kg block is pushed against a massless spring of force constant 4.5 x 103 N/m, the spring is compressed 7.9 cm. The block is released, and it slides 2.8 m (from the point at which it is released) across a horizontal surface before friction stops it. What is the coefficient of kinetic friction between the block and the surface?When a 3.0-kg block is pushed against a massless spring of force constant constant 4.5 × 103 N/m, the spring is compressed 8.0 cm. The block is released, and it slides 2.0 m (from the point at which it is released) across a horizontal surface before friction stops it. What is the coefficient of kinetic friction between the block and the surface?A block of mass m is initially at rest at the top of an inclined plane, which has a height of 4.8 m and makes an angle of θ = 27° with respect to the horizontal. After being released, it is observed to be traveling at v = 0.65 m/s a distance d after the end of the inclined plane as shown. The coefficient of kinetic friction between the block and the plane is μp = 0.1, and the coefficient of friction on the horizontal surface is μr = 0.2. a)What is the speed of the block, in meters per second, just after it leaves the inclined plane? b)Find the distance, d, in meters.
- A block with a mass of 4.5 kg is attached to a spring with a spring constant of 970 N/m. it is initially at rest on an inclien plane at an angle of 25 degrees with respect to the horizontal and the coefficent of kinetic friction between the block and the plane is .12/ in the intial position where the spring is compressed by a distance of d = .18m. the mass is at the lowest positiion and the spring is compressed a maximin amount. Take the intial gravtiation potential energy of the block as zero. 1) what is the blocks intitial mechanicial energy? 2) if the spring pushes the block up the incline what distance in meters will the block travel before coming to rest? the spring remains attached to both the box and the fixed wall throughout its motion.In the figure, the blocks have masses mA = 3.0 kg and mB = 5.0 kg. Between the wall and block B there is static friction, of coefficient 0.80 and the spring of block A, with elastic constant 580 N/m is stretched by x = 2.60 cm (elastic force points in the +y direction).The force F has a value of 100 N at time t = 0, but gradually reducing according to the expression F = 100 − 16t N (subject at F > 0).After how long will B slip?The ball launcher in a pinball machine has a spring that has a force constant of 1.23 N/cm. The surface on which the ball moves is in- clined 15.6◦ with respect to the horizontal. If the spring is initially compressed 3.58 cm, find the launching speed of a 0.19 kg ball when the plunger is released. The acceleration due to gravity is 9.8 m/s2 . Friction and the mass of the plunger are negligible.