Ex_energy

# Ex_energy - Energy equation K1 U g1 U e1 W1 2 = K 2 U g 2 U...

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Energy equation 111 1 22 22 22 12 (1/ 2) , (1 / 2) ge g e g en c KU U W KU U k F K mUm g y U k xW W N sW υμ +++ =++ == = = = + Example 1. A linear spring with an unstretched length of 0.5 m is fixed at O and attached to the slider. The 2 Kg slider is released from rest at A and moves up the smooth rod as shown. Determine the spring constant k if the slider strikes B with 5 m/s velocity. ( Ans : 57.4 N/m) 0.8 m A B O 0.9 m 0.6 m 2. The 2 Kg block has an initial speed of 6 m/s at the bottom of the ramp. It slides up the incline and then hits the linear spring ( k = 500 N/m), causing a maximum compression of 0.2 m. If friction is present only on the ramp while negligible everywhere else, find the kinetic coefficient of friction μ k between the block and the ramp surface. ( Ans : 0.380) 30 ° 1.6 m 3. The two blocks

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Ex_energy - Energy equation K1 U g1 U e1 W1 2 = K 2 U g 2 U...

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