A Block of Mass M=34 Kg and Speed $73 \mathrm {~N} \cdot \mathrm { s }$

question 123

Multiple Choice

A block of mass m=34 kg and speed V is behind a block of mass M=81 kg and speed of 0.50 m/s, as shown in the figure. The surface is frictionless and the blocks collide and couple. After the collision, the blocks have a common speed of 0.90 m/s. What is the magnitude of the impulse on the 34-kg block due to the collision?

• A) \(73 \mathrm {~N} \cdot \mathrm { s }\)
• B) \(57 \mathrm {~N} \cdot \mathrm { s }\)
• C) \(32 \mathrm {~N} \cdot \mathrm { s }\)
• D) \(14 \mathrm {~N} \cdot \mathrm { s }\)
• E) \(41 \mathrm {~N} \cdot \mathrm { s }\)

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