Tutorial #2 Additional Questions.pdf - 1 A 400-gram package lying on a horizontal surface is attached to a horizontal string which passes over a smooth

Tutorial #2 Additional Questions.pdf - 1 A 400-gram package...

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1. A 400-gram package lying on a horizontal surface is attached to a horizontal string which passes over a smooth pulley. When a mass of 200 grams is attached to the other end of the string, the package is on the point of moving. Find the static coefficient of friction. 2. A 500 kg car is going around a flat corner with a radius of 70 m. If the coefficient of friction between the tires and the road is 0.7, find the maximum speed at which the car can take the corner without slipping. 3.A 2 kg block has a static coefficient of friction of 0.4 and a kinetic coefficient of friction of 0.3. (a) How
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Unformatted text preview: large a force must be applied to the side of the block in order to get it to start moving? (b) If the force found in part (a) continues to be applied after the block starts moving, how fast will the block accelerate? 4. A 1 kg mass is attached to the end of 2 m rope and spun in a circle on the surface on a frictionless table. If the force of tension in the rope is 40 N, find the speed of the mass and the time it take to complete 1 rotation around the circle....
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