Block A (0.40 kg) and block B (0.30 kg) are on a frictionless table (s

Question

Notify Me Bookmark

Block A (0.40 kg) and block B (0.30 kg) are on a frictionless table (see figure). Spring 1 connects block A to a frictionless peg at O and spring 2 connects block A and block B. When the blocks are in uniform circular motion about 0, the springs have lengths of 0.60 m and 0.40 m, as shown. The springs are ideal and massless, and the linear speed of block B is 2.0 m/s. If the distance that spring 2 stretches is 0.060 m, the spring constant of spring 2 is closest to A) 18 N/m. B) 20 N/m. C) 22 N/m. D) 24 N/m. E) 26 N/m.

Image text

Block $A$ ( $0.40 k g)$ and block $B$ ( $0.30 k g)$ are on a frictionless table (see figure). Spring 1 connects block $A$ to a frictionless peg at $O$ and spring 2 connects block $A$ and block $B$ . When the blocks are in uniform circular motion about 0 , the springs have lengths of $0.60 m$ and $0.40 m$ , as shown. The springs are ideal and massless, and the linear speed of block $B$ is $2.0 m / s$ . If the distance that spring 2 stretches is $0.060 m$ , the spring constant of spring 2 is closest to A) $18 N / m$ . B) $20 N / m$ . C) $22 N / m$ . D) $24 N / m$ . E) $26 N / m$ .