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Consider the set up of a ballistic pendulum as shown in the Figure, where m1= 7.20...

Consider the set up of a ballistic pendulum as shown in the Figure, where m1= 7.20 g, m2= 2.80 kg, h = 0.060 m.

a) Find in m/s the final velocity of the system (m1 + m2) immediately after the collision and before the pendulum starts to swing upwards.

b) Find in m/s, v1, the initial speed of m1.

Use 9.8 N/kg for g.

Consider the set up of a ballistic pendulum as sho

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Answer #1

b) From conservation of energy, mi 2x(7.2x10+28x10-)x9.8x0.06 7.2x103 หุ้ 1.278 m/s Therefore, the initial speed of m is vh-1

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