In the figure, block 2 (mass 1.20 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 101 N/m. The other end of the spring is fixed to a wall. Block 1 (mass 1.20 kg), traveling at speed v₁ = 4.50 m/s, collides with block 2, and the two blocks stick together. When the blocks momentarily stop, by what distance is the spring compressed? 200000 Number i Units
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- On a flat, frictionless table, two blocks (B1 of mass 2.00 kg and B2 of mass 3.00 kg) are pressed together against either end of an ideal massless spring. The spring stores 75.0 J of elastic potential energy. The blocks are not attached to the spring. What will the coefficient of restitution be if both blocks are released simultaneously?Please help with following question!A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is elastic. The masses of the ball and block are, respectively, 1.7 kg and 2.3 kg, and the length of the wire is 1.21 m. Find the velocity (magnitude and direction) of the ball (a) just before the collision, and (b) just after the collision.
- 1. In an experiment, you throw a rubber ball of mass m = 25.0 g onto a block of mass M = 250 g that is initially at rest at the edge of a table of height h = 0.98 m. (Figure) The ball bounces back with a speed of 1.01 m/s, and the block eventually lands at d = 1.02 m from the bottom of the table. What is the speed of the ball, right before it hits the block? dIn a ballistic pendulum experiment, a small marble is fired into a cup attached to the end of a pendulum. If the mass of the marble is 0.0265 kg and the mass of the pendulum is 0.250 kg, how high h will the pendulum swing if the marble has an initial speed of 5.35 m/s? Assume that the mass of the pendulum is concentrated at its end so that linear momentum is conserved during this collision. h = mIn the figure, block 2 (mass 1.20 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 209 N/m. The other end of the spring is fixed to a wall. Block 1 (mass 1.20 kg), traveling at speed v1 = 3.50 m/s, collides with block 2, and the two blocks stick together. When the blocks momentarily stop, by what distance is the spring compressed? Number i Units
- You wake up one morning to find yourself in a strange room with opaque walls, and no visible doors or windows. You decide to do some experiments to find out more about your strange situation. Your own body mass is 59.1 kg. This time you drop a ball from a height of 1.93 m and it hits the floor 0.251 s after you drop it. This time you suspect you are on a rocket that has just left the surface of the Earth, and is still not too far above the ground. What do you deduce the rocket s acceleration to be? 82.4 m/s^2 51.5 m/s^2 71.1 m/s^2 61.3 m/s^2In a car crash, a Volvo of mass 1.85 x 104 kg collides with a stationary truck of mass 2.20 x 104 kg at a speed of u = 20.0 ms-1. Filling the crash, they connect and move at the same speed. There is no friction but the train driver blows a whistle (length = 0.480 m) which is open at one end and closed at the other and travels at a speed in air of 343 ms-1. If an observer stood nearby on a bridge above hears the whistle as the train approaches at 40.0 ms-1: 1. Demonstrate how the whistle frequency perceived by the observer is 13.2% greater than the frequency perceived by the driver. 2. Describe how the sound of the whistle heard by the observer will change as the train approaches and goes past the bridgeIn the figure, block 2 (mass 1.20 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 208 N/m. The other end of the spring is fixed to a wall. Block 1 (mass 1.90 kg), traveling at speed v1 = 3.50 m/s, collides with block 2, and the two blocks stick together. When the blocks momentarily stop, by what distance is the spring compressed? eelle Number i Units
- You have been asked to design an experiment to measure the speed of a fired bullet as part of your new job in the military sector. You decide you will use your knowledge of springs, conservation of momentum and energy to design your experiment. You decide to hang a spring with constant k vertically and attach a block of mass M to the end of the spring. The bullet of mass m is then fired vertically upward into the wooden block where it embeds into the block. You will measure the distance d that the spring is compressed and use this to find the initial speed of the bullet. A. Place the origin of your coordinate system on equilibrium position of the unstretched spring. Draw a before and after diagram of the bullet-spring system. Be sure to label any speeds, changes in length of the spring, and important information about the problem. Label the unknown bullet's speed VB. Label the unknown speed of the bullet + block system after the bullet embeds vo. B. Determine the symbolic energy…In the figure, mass m1=10.0 kg is moving at a speed of Vi1 undergoes a collision with mass m2 = 7.00 kg with speed Vi2 at θi = 37°. After the collision, the two masses stick together and keep moving with Vf at θf = 17°. The change in kinetic energy ∆K = −58.5 J, What is the velocity before the collision of Vi1 and Vi2 and after the collision of Vf?During a squash game, a player hits the ball, of 24 g, which is moving toward him horizontally at 150 km/h. The impact between the racket and the ball lasts 1.2 ms and the ball leaves with an identical speed but in the opposite direction as the initial velocity. The ball then hits the wall in front, 8 m away and 18 cm below the height of the hit. What is the average force acting on the ball during the impact?