A 650 g mass hangs from a spring, spring constant k, and the spring stretches 16 cm beyond the 6: unweighted equilibrium. Suppose the mass is tripled. Determine the new length of the spring with respect to the unweighted equilibrium. 16cm L? Fim

1--1 [carpet-2 IYYU A 0.25-kg block along a horizontal track has a speed of 1.5 m/s immediately before colliding with a light spring of force constant 4.6 N/m located at the end of the track. What is the spring's maximum compression if the track is frictionless? [SVF E08 05.35] 23. A. 0.2940 m D. 0.4351 m B. 0.2727 m E. 0.3497 m C. 0.3140 m F. 0.3087 m 1--1 NUTQJ A 2.9 kg mass is attached to a spring with constant 24_N/m and is moving horizontally on a frictionless surface. If the object has speed 1.4 m/s as it passes through the equilibrium position, then what is the maximum displacement of the object? 24. 0.4867_m D. 0.4348_m 0.257 m 0.1773 m E. A. B.

A spring has a length of 0.220 m when a 0.300 kg mass hangs from it, and a length of 0.750 m when a 2.80 kg mass hangs from it. (a) What is the force constant (in N/m) of the spring? N/m (b) What is the unloaded length (in m) of the spring? Additional Materials O Reading

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W 10. A 1.45-kg block is pushed against a vertical wall by means of a spring (k = 850 N/m). The coefficient of static friction between the block and the wall is 0.56. What is the minimum compression in the spring to prevent the block from slipping down? 3 E D 4 22 R F % 5 cm T G 6 tv MacBook Air Y Ⓒ H & 7 U www * 8 ci16.06.co J Dil ( 9 K O O 4 P vauies or ne puffer + { ISUIT by m 04 M (

A Hooke's law spring is compressed 18.0 cm from equilibrium and the potential energy stored is 72.0 J. What is the spring constant in this case? Choose: A. 10 000 N/m B. 6 400 N/m C. No answer is correct. D. 4 444 N/m

A 4.50 x 10^5 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.800 m By a large spring bumper at the end of its track. what is the force consistent K of the spring? n/m ? I used the ^ symbol to show exponent

16. A force of 5.0 N acts on a 15 kg body initially at rest. Compute the work done by the force in (a) the first, (b) the second, and (c) the third seconds and (d) the instantaneous power due to the force at the end of the third second. 17. What is the spring constant of a spring that stores 25 I

When a spring with stiffness constant   k is compressed or stretched by a distance x the elastic potential energy stored by the spring is  A. -kx B. 0.5kx^2 C. 0.5mv^2 - U (x) D. [None of the others.] E. kx F. mgx

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