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A Block of Mass M = 4 $v _ { \mathrm { i } } = 9.2 \mathrm {~m} / \mathrm { s }$

Question 68

Multiple Choice

A block of mass m = 4.4 kg,moving on frictionless surface with a speed $v _ { \mathrm { i } } = 9.2 \mathrm {~m} / \mathrm { s }$ makes a sudden perfectly elastic collision with a second block of mass M,as shown in the figure.The second block is originally at rest.Just after the collision,the 4.4-kg block recoils with a speed of $v _ { \mathrm { f } } = 2.5 \mathrm {~m} / \mathrm { s }$ What is the mass M of the second block? $A block of mass m = 4.4 kg,moving on frictionless surface with a speed v _ { \mathrm { i } } = 9.2 \mathrm {~m} / \mathrm { s } makes a sudden perfectly elastic collision with a second block of mass M,as shown in the figure.The second block is originally at rest.Just after the collision,the 4.4-kg block recoils with a speed of v _ { \mathrm { f } } = 2.5 \mathrm {~m} / \mathrm { s } What is the mass M of the second block? A) 7.7 kg B) 0 kg C) 0.0 kg D) 0.7 kg$

A) 7.7 kg
B) 0 kg
C) 0.0 kg
D) 0.7 kg

A Block of Mass M = 4 vi=9.2 m/sv _ { \mathrm { i } } = 9.2 \mathrm {~m} / \mathrm { s }vi​=9.2 m/s

Multiple Choice

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A Block of Mass M = 4 $v _ { \mathrm { i } } = 9.2 \mathrm {~m} / \mathrm { s }$

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