1. A hammer is hanging by a light rope from the ceiling of a bus. The ceiling of the bus is parallel to the
roadway. The bus is traveling in a straight line on a horizontal street You observe that the hammer hangs at
rest with respect to the bus when the angle between the rope and the ceiling of the bus is 74°. What is the
acceleration of the bus?
2. A bowling ball weighing 71.2 N (16.0 lb) is attached to the ceiling by a 3.80-m rope. The ball is polled
to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical,
the speed of the bowling ball is 4.20 m/s. (a) What is the acceleration of the bowling ball, in magnitude and
direction, at this instant? (b) What is the tension in the rope at this instant?
1. A hammer is hanging by a light rope from the ceiling of a bus. The ceiling of the bus is parallel to the
roadway. The bus is traveling in a straight line on a horizontal street You observe that the hammer hangs at
rest with respect to the bus when the angle between the rope and the ceiling of the bus is 74°. What is the
acceleration of the bus?
2. A bowling ball weighing 71.2 N (16.0 lb) is attached to the ceiling by a 3.80-m rope. The ball is polled
to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical,
the speed of the bowling ball is 4.20 m/s. (a) What is the acceleration of the bowling ball, in magnitude and
direction, at this instant? (b) What is the tension in the rope at this instant?
