1. If the applied force is 97.3 N at an angle of 25.7 degrees, the force of gravity is 109 N and the coefficient of friction is 0.334, then what is the acceleration (in m/s/s) of the object.

2. A 402-kg roller coaster car is moving with a speed of 16.7 m/s at the top of a 16.2-meter-high loop. What is the kinetic energy of the car at the bottom of the loop?

3. A barrel rider is moving in a circle with a speed of 6.0 m/s. The acceleration of the rider is 8.1 m/s/s. The speed of the object is somehow increased to 12.0 m/s (i.e., doubled). The new acceleration would be _____ m/s/s. (Assume that the radius of the circle is not changed.)

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