A cylindrical steel bar of radius 2.50 cm is compressed by the application of forces of magnitude 1.50 x 10^3 N at each end. What magnitude forces (at each end) would be required to compress by the same amount a steel bar of the same length, but a radius of 1.25 cm?
A. 375 N.
B. 750 N.
C. 1.06 x 10^3 N.
D. 1.50 x 10^3 N.
Answer:A
A cylindrical steel bar of radius 2.50 cm is compressed by the application of forces of magnitude 1.50 x 10^3 N at each end. What magnitude forces (at each end) would be required to compress by the same amount a steel bar of the same length, but a radius of 1.25 cm?
A. 375 N. B. 750 N. C. 1.06 x 10^3 N. D. 1.50 x 10^3 N.