• A spring has K=24 N/m, we put in its end an object with 4 kg, if we pull the object 0.5 m then leave it, what would be the speed in 0.3 m from balance point.
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Q: •• A 2.40-kg block is dropped onto a spring and platform (Figure 7-45) of negligible mass. The block…
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A: Free body diagram
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Q: When a 3.00-kg object is hung vertically on a certain light spring that obeys Hooke's law, the…
A: See below
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A: x1 = 0.4 m x2 = 3.4 m l = 2.5 m k = 4200 N/m To find = Force on ball 1
Q: • Two forces i+j+kN and i+2j+ 3k N act on a particle and displace it from (2, 3, 4) to point (5, 4,…
A: Given value--- two force F1 = i+j+k . F2 = i+2j+3k . displacement…
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- Current Attempt in Progress A 0.34 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 670 N/m) whose other end is fixed. The ladle has a kinetic energy of 310 J as it passes through its equilibrium position (the point at which the spring force is zero). (a) At what rate is the spring doing work on the ladle as the ladle passes through its equilibrium position? (b) At what rate is the spring doing work on the ladle when the spring is compressed 0.27 m and the ladle is moving away from the equilibrium position? (a) Number i (b) Number i Units Units• A 1.50-kg book is sliding along a rough horizontal sur- face. At point A it is moving at 3.21 m/s, and at point B it has slowed to 1.25 m/s. (a) How much work was done on the book between A and B? (b) If –0.750 J of work is done on the book from B to C, how fast is it moving at point C? (c) How fast would it be moving at C if +0.750 J of work were done on it from B to C?