47. Which combination of funda be used to express the elastic potential energy stored in a compressed spring? (1) kg.m/s? (2) kg.m?/s (3) kg. m?/s? (4) kg.m²/s³ 48. A force is applied to a spring causing it to stretch. If the applied force is halved, the potential energy stored in the spring will be (1) halved (2) doubled (3) quartered (4) quadrupled 49. A vertically hung 0.50-meter-long spring is stretched from its equilibrium position to a length of 1.00 meter by a weight attached to the spring. If 15 joules of elastic potential energy are stored in the spring, what is the value of the spring constant? (1) 30. N/m (2) 60. N/m (3) 120 N/m

47. Which combination of funda be used to express the elastic potential energy stored in a compressed spring? (1) kg.m/s? (2) kg.m?/s (3) kg. m?/s? (4) kg.m²/s³ 48. A force is applied to a spring causing it to stretch. If the applied force is halved, the potential energy stored in the spring will be (1) halved (2) doubled (3) quartered (4) quadrupled 49. A vertically hung 0.50-meter-long spring is stretched from its equilibrium position to a length of 1.00 meter by a weight attached to the spring. If 15 joules of elastic potential energy are stored in the spring, what is the value of the spring constant? (1) 30. N/m (2) 60. N/m (3) 120 N/m

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 27PQ: A spring of spring constant k lies along an incline as shown in Figure P8.27. A block of mass m is...

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