As shown in the figure, a 4.0-kg block is moving at 5.0 m/s…
As shown in the figure, a 4.0-kg block is moving at 5.0 m/s along a horizontal frictionless surface toward an ideal spring (spring constant=100 N/m) that is attached to a wall. After the block collides with the spring, what is the compression X of the spring?
Read DetailsAs shown in the figure, a 10.0 m long bar is attached by a f…
As shown in the figure, a 10.0 m long bar is attached by a frictionless hinge to a wall and held horizontal by a light rope that makes an angle θ = 49° with the bar. The bar is uniform and has a mass of 7 kg. What distance x from the hinge should a 10.0 kg mass be suspended for the tension in the rope to be 180 N?
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