A Block of Mass M = 34 Kg and Speed $0.50 \mathrm {~m} / \mathrm { s }$

question 77

Multiple Choice

A block of mass m = 34 kg and speed V is behind a block of mass M = 81 kg and speed of $0.50 \mathrm {~m} / \mathrm { s }$ 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 $0.90 \mathrm {~m} / \mathrm { s }$ What is the magnitude of the impulse on the 34-kg block due to the collision?

• A)32 N ∙ s
• B)14 N ∙ s
• C)41 N ∙ s
• D)57 N ∙ s
• E)73 N ∙ s

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