Question 7 (5 points) Blaine steps onto a ski slope wit an angle of 25. Theld is a coefficient of kinetic friction of 0.15 between him and the ground. He has a mass of 65 kg
B. Write the expressions for net force in the x and y directions be sure to tilt your axis along the incline.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping