Grade 11Modern Physics

Two spheres of masses 6g nd 8g r moving towards each other in the same line with velocity 10cm/s and 6cm/s respectively.. Find their velocities after collision if the coefficient of restitution is 0.75

Dhruba

7 Years agoGrade 11

2 Answers

Vikas TU

7 Years ago

Hiii Dhruv

Cofficient of restitution = v2 – v1 / u1 – u2

Where u1 and u2 are velocity before collision and v1 and v2 are velocity after collision.

so 0.75 = v2 – v1 / u1 – u2

v2 – v1 = 3............................................(1)

Apply conservation of momentum

m1u1 + m2u2 = m1v1 + m2v2

so, putting the value in this we get :

6v1 + 8 v2 = 108.................................(2)

Solving equation 1 and 2 we get

v1 = 6 cm/s and v2 = 9 cm/s

Khimraj

6 Years ago

m1u1 + m2u2 = m1v1 + m2v2

6v1 + 8 v2 = 108.

.........................................................................................

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Two spheres of masses 6g nd 8g r moving towards each other in the same line with velocity 10cm/s and 6cm/s respectively.. Find their velocities after collision if the coefficient of restitution is 0.75

Dhruba

2 Answers

Vikas TU

Khimraj

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