A small box with a weight of 25.0 Nis placed on top of a larger box...
Question 12 (1 point) A 50.0-kg box is resting on a horizontal floor. A force of 250 N directed at an angle of 20.7° below the horizontal is applied to the box. The coefficient of kinetic friction between the box and the surface is 0.300. What is the acceleration of the box? OA) 3.54 m/s2 OB) 5.14 m/s2 OC) 2.84 m/s2 OD) 1.21 m/s2 E) 1.77 m/s2 Question 13 (1 point) A 50.0-kg box is resting on a horizontal floor....
A 25.0-kg box is released at the top of a frictionless ramp that is inclined at an angle of 35.0◦ with the horizontal. The box slides 1.50 m down the ramp before you catch it and bring it to a stop in 0.400 m. Assuming you pushed on the box with a constant force that was parallel to the ramp as you caught it, what was the magnitude of the force you exerted on the box to bring it to...
A block M1 of mass 16.0 kgsits on top of a larger block M2 of mass 26.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.400. The kinetic friction coefficient between the lower block and the flat surface is 0.100. A horizontal force F = 98 N pushes against the upper block, causing it to slide. The friction force between the blocks then causes the lower block to slide also....
The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless, frictionless pulley. One end of the rope is connected to box 2, and the other end is connected to box 3. The weights of the three boxes are W_1 = 52.8 N, W_2 = 3.1 N, and W_3 = 25.8 N. Determine the magnitude of the normal force that the table exerts on box 1.
The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless, frictionless pulley. One end of the rope is connected to box 2, and the other end is connected to box 3. The weights of the three boxes are W_1 = 49.5 N, W_2 = 33.3 N, and W_3 = 25.4 N. Determine the magnitude of the normal force that the table exerts on box 1....
A spring is resting vertically on a table. A small box is dropped onto the top of the spring and compresses it. Suppose the spring has a spring constant of 500 N/m and the box has a mass of 2.8 kg. The speed of the box just before it makes contact with the spring is 0.55 m/s. (a) Determine the magnitude of the spring’s displacement at an instant when the acceleration of the box is zero. (b) What is the...
1) Consider two boxes: box B, with a mass of 3kg, placed on top box A, with a mass of 10kg. If box A is pushed with a force of 70N, what is the force of friction on box B? The coefficients of friction between boxes A and B are µs = 0.7 and µk = 0.4, while friction is negligible between box A and the ground. 2) A 1.5kg box is pushed up a 30o incline with a force...
A small block of mass, m, sits on top of a larger block of mass, M. The coefficients of friction between the blocks are μk and μs where μs=3/2μk, but the larger block sits on a frictionless surface. An increasing force, F=ft in the x-direction is exerted on the smaller mass. a) Find the acceleration of larger block and the smaller block in the time before the smaller block slips off the larger block. b) the time in which the...
A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 28 degree above the horizontal. The coefficients of static and kinetic friction between the box and wall are 0.40 and 0.30, respectively. The box slides down unless the applied force has magnitude 23 N. What is the mass of the box?
5:13 4 9 OP! 61% In figure A, a ball with a weight of 36.0 NIS supported by a string. The ball hangs over a beaker of fluid. The beaker sits on a scale, which reads 22.0 N. In figure B, the ball is completely submerged in the fluid, and the tension in the string is 12.0 N. In figure C, the ball is exactly half submerged. In figure D, the string has been cut, and the ball is resting...