Need your help please do not use picture if it not more than claer D My Notes I

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Need your help please do not use picture if it not more than claer

D My Notes I se PSE89. P.019.W 5. -1 points A 10.2 g bullet is fired into a stationary block of wood having mass m 5.03 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination speed of the bullet? ediately after the co 0.609 m/s. What was the original ess your answer with four significant figures. mm Sio n is m/s Need Help? Read It Watch It Chat About It 6. -1 points My Notes Ser PSE89. P.026 As shown below, a bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length L and negligible mass. What is the minimum value of v such that the pendulum bob will barely swing through a complete vertical circle? Use any variable o r symbo ol stated above along with the f ollowing as necessary: g v/2 Need Help? Read it Chat About It

Explanation / Answer

5. Using conservation of linear momentum

m1v1 + m2v2 = (m1+m2)v

0.0102*v1 + 0 = (0.0102 + 5.03)*0.609

v1 = 300.92m/s

6) For ball to complete full circle,

Let speed of ball be Vb after impact

0.5*M*Vb^2 = M*g*2L

Vb = sqrt(4*g*L)

Using conservation of momentum

m1v1 + m2v2 = m1v3 + m2v4

m*v + 0 = M*Vb + m*v/2

m*v/2 = M* sqrt(4*g*L)

v = 4 * (M/m) * sqrt(g*L)

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