A block of mass m = 3.6 kg, moving on a frictionless surface with a speed $\mathrm { v } _ { \mathbf { i } } = 9.3 \mathrm {~m} / \mathrm { s } ,$ makes a sudden perfectly elastic collision with a stationary block of mass M, as shown in the figure. Just after the collision, the 3.6-kg block recoils with a speed of $v _ { \mathrm { f } } = 2.7 \mathrm {~m} / \mathrm { s } .$ What is the speed V of the other block?
A)6.6 m/s
B)8.0 m/s
C)9.3 m/s
D)10.7 m/s
E)12.0 m/s

Question

A block of mass m = 3.6 kg, moving on a frictionless surface with a speed $\mathrm { v } _ { \mathbf { i } } = 9.3 \mathrm {~m} / \mathrm { s } ,$ makes a sudden perfectly elastic collision with a stationary block of mass M, as shown in the figure. Just after the collision, the 3.6-kg block recoils with a speed of $v _ { \mathrm { f } } = 2.7 \mathrm {~m} / \mathrm { s } .$ What is the speed V of the other block? 
A)6.6 m/s 
B)8.0 m/s 
C)9.3 m/s 
D)10.7 m/s 
E)12.0 m/s

Quizplus · Accepted Answer

The Answer of A block of mass m = 3.6 kg, moving on a frictionless surface with a speed $\mathrm { v } _ { \mathbf { i } } = 9.3 \mathrm {~m} / \mathrm { s } ,$ makes a sudden perfectly elastic collision with a stationary block of mass M, as shown in the figure. Just after the collision, the 3.6-kg block recoils with a speed of $v _ { \mathrm { f } } = 2.7 \mathrm {~m} / \mathrm { s } .$ What is the speed V of the other block? 
A)6.6 m/s 
B)8.0 m/s 
C)9.3 m/s 
D)10.7 m/s 
E)12.0 m/s

A Block of Mass M = 3 vi=9.3 m/s,\mathrm { v } _ { \mathbf { i } } = 9.3 \mathrm {~m} / \mathrm { s } ,vi​=9.3 m/s,

A Block of Mass M = 3 $\mathrm { v } _ { \mathbf { i } } = 9.3 \mathrm {~m} / \mathrm { s } ,$