3 kg 1) If the magnitude of Fis 12.0 N, what is the acceleration of the blocks?

Question

3 kg 1) If the magnitude of Fis 12.0 N, what is the acceleration of the blocks? 2) What force is required to make the blocks, starting from nest, cover 121 m in 5.50 s? 3) What force is required to make the blocks, starting from nest, speed up to 16.5 m/s in 5 so s? moving 126 m? towel 5) suppose that the magnitude of F is 12.0 N. A) What is the magnitude and direction of the force that the 2 kg block e block? F21 ma B) What is the magnitude and direction of the force that the 2 kg block exerts on the 3 kg block? c) What is the magnitude and direction of the force that the 3 kg block exerts on the 2 kg block? D) What is the magnitude and direction of the force that the 1 kg block exerts on the 2 kg block? STAR TVE

Explanation / Answer

1) a = F/m = 12 / (1 + 2 + 3) = 2 m/s2

5) writing the force equation we have

F - T1 = a ---------(1)

T1 - T2 = 2a ------------(2)

T2 = 3a -----(3)

c) = b) T2 = 3*2 = 6N

a) = d) T1 = 2*2 + 6 = 10 N

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