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# HW09 - How fast can the car go around the curve without...

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Jim Guinn’s PHYS1111 Assignment #9 Due Wednesday, Feb. 24, 2010 1. A 1.00kg mass is attached to a wall with a string as shown in the diagram. It is resting on a 2.00kg mass. The 2.00kg mass is pulled to the right with a force of 20.0N . There is a coefficient of kinetic friction of 0.400 between the two masses and between the 2.00kg mass and the floor. a.) What is the tension is the string attached to the 1.00kg mass? b.) What is the acceleration of the 2.00kg mass? 2. A car is going around a curve with a radius of 75.0m . There is a coefficient of static friction between the tires and the road of 0.800 .
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Unformatted text preview: How fast can the car go around the curve without skidding? (Think about what force is acting as the centripetal force on the car.) 3. A conical pendulum is formed when an object suspended from a string is allowed to swing around a circle, rather than just back and forth. Assume a mass of 35.0g is attached to a 1.00m long string and is swinging around a circle at an angle of 20.0 o from the vertical as in the diagram. a.) What is the tension in the string? b.) What is the period of the motion? 2.00kg 1.00kg 20.0N 20.0 o...
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