3. Two wagons connected by a cord passing over a small, frictionless pulley rest on frictionless planes as shown. Find the acceleration of the wagons and the tension in the cord. 10 kg 15 kg 37° 53°
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- 2862. Find the tension in each rope. Assume frictionless surface. 20 kg 10 kg 30°2. Mass 1 = 3.5 kg brick is placed on an inclined plane which forms an angle of 25° with the horizontal. There is a string attached to the brick that passes over a pulley and connects to a Mass 2 = 1.15 kg. The coefficient of static friction between the brick and the plane is 0.25. a. What is the acceleration of the brick? b. What is the tension in the string? [33
- 1. A flat, unbanked curve on a highway has a radius of 195 m. If the coefficient of static friction between a car's tires and the road is 0.750, what is the fastest speed the car can drive around the curve without sliding?4. The 100-kg crate is subjected to the forces shown. If it is originally at rest, determine the distance it slides in order to attain a speed of v= 6 m/s. The coefficient of kinetic friction between the crate and the surface is Hk = 0.2. 500 N 400 N 30° 45°8. Two masses, connected by a massless string, hang over a pulley that connects two inclines (Figure 8). Mass m, is 8.0 kg, and mass m, is 12 kg. The coefficient of kinetic friction for both inclines is 0.21. Determine the acceleration of the two masses. A m, m2 0, = 26° 02 = 39° Figure 8