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Solve the all given parts of following problem:

Problem: A 1360 kg truck rounds a curve of radius 35m banked at an angle of 25 degrees.

Part A: If the truck is traveling at 50km/h, will a friction force be required?

Part B: If friction is required, how much and in which direction?

Part C: When asphalt becomes wet, the coefficient of static friction between tires and the road can be as low as 0.1. If, for this banked curve, the coefficient of static friction were 0.1, what would be the maximum speed vehicles could go around the curve without slipping?

This is a physic problem, reply as soon as possible. Thank.

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