Block A with a mass of 1.2 kg is at rest on a flat, horizontal, frictionless table 1 m from the edge. A string is tied to Block A at one end, and the other is tied to Block B, which has a mass of 2.6 kg. While Block A is being held in place on the table, Block B is lowered over the edge of the table and allowed to hang freely. When Block A is released, it slides to the edge of the table. Assume that the string has an insignificant mass. How much time does it take for Block A to reach the edge of the table?

Two blocks are positioned on surfaces, each inclined at the same angle of 59.6 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 3.24 kg, and this time there is NO friction. What is must be the mass of the white block if both blocks are to slide to the LEFT at an acceleration of 1.5 m/s^2?     6.96 kg     3.09 kg     4.64 kg     1.74 kg

A lamp hangs from the ceiling of an elevator as it slows to a stop as it approaches the top floor in a building. The tension in the cord holding the lamp is 90 N and the elevator slows at a rate of 3.2 m/s^2. What is the mass of the lamp?

Block A with a mass of 2.2 kg is at rest on a flat, horizontal, table 1 m from the edge. The table has a coefficient of kinetic friction of 0.308. A string is tied to Block A at one end, and the other is tied to Block B, which has a mass of 1.1 kg. While Block A is being held in place on the table, Block B is lowered over the edge of the table and allowed to hang freely. When Block A is released, it slides to the edge of the table. Assume that the string has an insignificant mass. How much time does it take for Block A to reach the edge of the table?

Two blocks are joined by a massless rope that goes through the center of a rotating turntable. The blocks have masses M1 = 1.1 kg and M2 = 2.8 kg. Block 1 rests a distance r = 0.35 m from the center of the turntable. The coefficient of static friction between block and turntable is 0.69. Block 2 hangs vertically below Find the speed of circular motion at which block 1 just begins to slip outward along the surface of the turntable. Enter your answer in meters per second. v = ??

Sphere A is attached to the ceiling of an elevator by a string. A second sphere is attached to the first one by a second string. Both strings are of negligible mass. Here m1 = m2 = m = 3.33 kg. (a) The elevator starts from rest and accelerates downward with  a= 1.35 m/s2. What are the tensions in the two strings in newtons? T1= ____ N T2= ____ N (b) If the elevator moves upward instead with the same acceleration what will be the tension in the two strings in newtons? T1= _____ N T2= _____ N (c) The maximum tension the two strings can withstand is 95.0 N. What maximum upward acceleration (in m/s2) can the elevator have without having one of the strings break?  _____ m/s2

Two blocks are positioned on surfaces, each inclined at the same angle of 47.2 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 7.58 kg, and this time there is NO friction. What is must be the mass of the white block if both blocks are to slide to the LEFT at an acceleration of 1.5 m/s^2? 1 7.71 kg 2 11.57 kg 3 6.08 kg 4 17.36 kg

Two buckets of sand hang from opposite ends of a rope that passes over an ideal pulley. Onebucket is full and weighs 120 N; the other bucket is only partlyfilled and weighs 63 N. (a) Initially, you hold onto the lighterbucket to keep it from moving. What is the tension in the rope?(b) You release the lighter bucket and the heavier one descends.What is the tension in the rope now? (c) Eventually the heavierbucket lands and the two buckets come to rest. What is the tension in the rope now? Show your work and explain

A 0.0100-kg block and a 2.40-kg block are attached to the ends of a rope. A student holds the 2.40-kg block and lets the 0.0100-kg block hang below it; then he lets go. What is the tension T in the rope while the blocks are falling, before either hits the ground? Air resistance can be neglected. T =

Two objects are connected by a massless cable passing over a frictionless pulley. Object A is positioned on a table, while object B hangs freely. The coefficient of kinetic friction between object A and the table is 0.09950. If the mass of object A is 150 kg, and the mass of object B is 238 kg, what is the acceleration of the objects?