11. A block of mass 1.2 kg lies on a frictionless surface. A man slides the block against a spring, compressing it .15m. When the man lets go of the spring, the block moves at 5 m/s. What is the spring constant of the spring? wwww
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- Four objects are held in position by massless rigid rods as indicated in the figure above. The masses of the objects are: m₁ = 8.6 kg, m₂ = 2.69 kg, m3 = 2.68 kg, andm4 = 21.47 kg. For each of the possible axes of rotation (x, y, and through the origin, the z-axis)what torque would be necessary for the system shown in the above diagram to have an angular acceleration of 2.08 s-2. (The dimensions in the diagram are A = 12.87 m, B = 18.69 m) T₁ = Ty = T₂ =Please help me with my homework on PhysicsAttached photo. Please help! I need to know how to set it up.
- R r MQuestion8Part B Which of the four drawings is a correct force diagram for this problem? (Figure 2) a b C Submit Request Answer Choose a coordinate system for each body Newton's 2nd law, F = mã, is a vector equation. To add or subtract vectors it is often easiest to decompose each vector into components. Whereas a particular set of vector components is only valid in a particular coordinate system, the vector equality holds in any coordinate system, giving you freedom to pick a coordinate system that most simplifies the equations that result from the component equations. It's generally best to pick a coordinate system where the acceleration of the system lies directly on one of the coordinate axes. If there is no acceleration, then pick a coordinate system with as many unknowns as possible along the coordinate axes. Vectors that lie along the axes appear in only one of the equations for each component, rather than in two equations with trigonometric prefactors. Note that it is sometimes…