Please help with these questions, thanks! A 5.0-kg block and a 4.0-kg block are

Question

Please help with these questions, thanks!

A 5.0-kg block and a 4.0-kg block are connected by a 0.6-kg rod. The links between the blocks and the rod are denoted by A and B. A force F is applied to the upper block. 2) In Fig. 4.3, the blocks and rod assembly moves downward at constant velocity. The applied force F is closest to: A)88N B)90N C)92 N D)96N E)94 N 3) In Fig. 4.3, the blocks and rod assembly moves upward at constant velocity. The force in link A is closest to: A) 43 N B) 47 N C) 39 N D) 45 N E) 41 N 4) In Fig. 4.3, the applied force F equals 150 N. The force in link B is closest to: A) 58 N B) 54 N C)62 N D)56N E)60 N 5) In Fig. 4.3, the force in link B is 40 N. The acceleration of the blocks and rod assembly, including direction, is closest to: A) zero B) 2.4 m/s^2, downward C) 2.4 m/s^2, upward D) 1.2 m/s^2, upward E) 1.2 m/s^2, downward 6) In Fig. 4.3, the blocks and rod assembly accelerates upward at 2.0 m/s4. The force in link A exceeds the force in link B by an amount that is closest to: A) 7 N B) 8 N C) 6 N D) 10 N E) 9 N

Explanation / Answer

3) D)45 N

4) C) 62 N

5) A) zero

6) A) 7 N

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