14 m/s 4. How fast is a 2.0 kg stone moving if the radius of its path is 3.0 m and it experiences a 12
14 m/s 4. How fast is a 2.0 kg stone moving if the radius of its path is 3.0 m and it experiences a 12 N centripetal force? 4.2 m/s 5. Your nephew rides a kiddy train at the local carnival. The train, which has a mass of 1000 kg, rounds a curve with a radius of 5.0 m. The rails can exert a maximum force of 2000 N in the radial direction. What is the maximum speed of the train without derailing? 3.2 m/s 6. What is the mass of a person who weighs 60ON? 61.2 kg 7. What is the gravitational force between two 60.0kg people sitting 100m apart? 2.4 x 10 HIN 8. The mass of Mars is 6.418x1023kg and its radius is 3.38x106m. What is the acceleration due to gravity on the surface of Mars? 3.75 m/s? D Focus ons: On Kx Accessibility: Investigate O W 63OF Cloudy DELL F4 F5 F6 F7 F8 F10 F11 F12 F3 # $ A & K 5 6 7 8 9 O 4 N E R T Y U O P D F G H J K L X C V B N M
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