
Questions The 3.00 kg block in the figure below is attached to a vertical rod by...
The 4.00 kg block in the figureis attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended as shown, and the tension in theupper string is 80.0 N. (a) What is the tension in the lower cord? Start with a free body diagram of the block. (b) What is the speed of the block?
A 7.00-kg block is attached to a vertical rod by two strings, each of which has a length of 1.30-m, and attached to the center of the block’s face closest to the vertical rod. The strings are attached 2.25-m apart on the vertical rod, and the system rotates about the axis of the vertical rod. Sketch a real world picture of this scenario. Show how to determine the rpm at which the lower string goes slack. Show how to determine...
4. -2 points PSE6 6.P.011 My Notes A 3.90 kg object is attached to a vertical rod by two strings as in Figure P6.11. The object rotates in a horizontal circle at constant speed 7.10 m/s. 00 m 3.00 m 00 m Figure P6.11 (a) Find the tension in the upper string (b) Find the tension in the lower string
The figure shows three blocks attached by cords that loop over
frictionless pulleys. Block B lies on a frictionless
table; the masses are mA = 4.40 kg,
mB = 8.30 kg, and mC = 13.0
kg. When the blocks are released, what is the tension in the cord
at the right?
Problem #4 In the diagram below, a 3.00 kg mass is attached to a rod 2.00 m long by two strings which are each 1.50 m in length. The rod completes one turn every 1.40 s, so that the mass completes one turn every 1.40 s. (a) Find the radius of the circle traced out by the mass. (b) Draw a free-body diagram for the ball, including all force vectors and the acceleration vector. (c) Find the tension in the...
In the figure, a 8.28 g bullet is fired into a 0.996 kg block attached to the end of a 0.611 m nonuniform rod of mass 0.490 kg. The block-rod-bullet system then rotates in the plane of the figure, about a fixed axis at A. The rotational inertia of the rod alone about A is 0.0857 kg-m^2. Treat the block as a particle, (a) What then is the rotational inertia of the block-rod-bullet system about point A? (b) If the...
Two cables are attached to the 300g sphere. The sphere
rotates in a horizontal circle at a constant speed of 7.5m / s
a) What is the tension in each of the cables?
b) how many revolutions per minute (rpm) does the
system give?
c) calculate the (rpm) with which the lower cord loses
all its tension
1.0 m 0.50 m 0.50 m 1.0 m Figura 4
A light rope is attached to a block with mass 3.00 kg that rests on a frictionless, horizontal surface. The horizontal rope passes over a frictionless, massless pulley, and a block with mass m is suspended from the other end. When the blocks are released, the tension in the rope is 15.3 N . part a) Draw free-body diagram for the 3.00-kg block. Assume block is moving to the right. Draw the vectors starting at a black dot. The location...
A small block with a mass of 0.0600 kg is attached to a cord passing through a hole in a frictionless, horizontal surface (Figure 1). The block is originally revolving at a distance of 0.49 m from the hole with a speed of 0.77 m/s . The cord is then pulled from below, shortening the radius of the circle in which the block revolves to 9.0×10−2 m . At this new distance, the speed of the block is 4.19 m/s...
1- Below figure a rod of AB by the length of 6.0 m and mass of 20.0 kg is hinged at one end and the other end is attached to a cord and cord to the wall. A mass of 60.0 kg is at 2.0 meter from the hinge and another mass with 80 kg is at 5.0 meter from hinge. At this situation find amount of tension in cord and exerted force from wall on the hinge. string 50...