A pendulum consists of a 2.0-kg block hanging on a 1.5-m length string. A 10-g bullet moving with a horizontal velocity of 900 m/s strikes, passes through, and emerges from the block (initially at rest) with a horizontal velocity of 300 m/s. To what maximum height above its initial position will the block swing?
a. 32 cm
b. 38 cm
c. 46 cm
d. 27 cm
e. 9 cm
Question 2
A 10-g bullet moving horizontally with a speed of 1.8 km/s strikes and passes through a 5.0-kg block initially at rest on a horizontal frictionless surface. The bullet emerges from the block with a speed of 1.0 km/s. What is the kinetic energy of the block immediately after the bullet emerges?
a. 8.0 J
b. 6.4 J
c. 5.3 J
d. 9.4 J
e. 10 J
Guitar string
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