QUESTION 1 A batter swings a 0.9 m long bat. Assume the bat has a mass of 0.6 kg the bat rotates at 3 rad/s. The kinetic energy of the bat is, J. 1 3 (Hint: Approximate the bat by a rod, or a long thin cylinder, and use I=-ML2 for the rotational inertia of a rod of mass M and length L rotating around its end perpendicular to its length)

8 A 2.05 μC charged ball is placed in an electric field as shown in the figure above. The ball has a mass of 2.46 g. The electric field causes the charge to deflect 22.8°. Find the electric field that causes this deflection. E =

Determine the angular momentum Hp of each of the two particles about point P. Use a scalar solution. Take that mA = 2.0 kg and mp = 1.2 kg. (Figure 1) Figure A 15 m/s MA y 0 -2m- 30° 10 m/s B 5 m 1.5 m m' 4 m | mB 4 m X < 1 of 1 Part A Hp of the particle A about point P. Express your answer to three significant figures and include the appropriate units. +(HA)P= Value Submit Part B μA Submit Request Answer Provide Feedback Hp of the particle B about point P. Express your answer to three significant figures and include the appropriate units. HÅ +(HB)P= Value | Units Request Answer ? Units ?

8. A particle is displaced from the equilibrium position by a distance 1=1.0 cm and then left alone. What is the distance that the particle covers till its oscillations die down, if the logarithmic decrement is equal to λ = 0.020? [Answer: s=2 m nearly]