PHYS 201 Midterm: PHYS 201 TAMU 201Fall 08 Exam 2
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The formula sheet is the last page of the exam. exam and doesn"t have to be turned in. It can be torn off from the rest of the. No work needs to be shown. (6 pts) 1. A small rock is projected from ground level with a speed of 20. 0 rn/s at an angle of 53. 0 above the horizontal. When the rock is at its maximum height above the ground, its speed is (a) zero (b) 12. 0 m/s (c) 16. 0 rn/s (d) 20. 0 rn/s (e) none of the above (6 pts) 2. A ramp is inclined at 37 above the horizontal. A box with mass 20. 0 kg is sliding down the ramp. The coefficient of kinetic friction between the box and the ramp is ilk = 0. 20. The magnitude of the friction force that acts on the box is. 44 (a) zero (b) 23. 6 n (c) 31. 3 n (d) 39. 2 n (e) none of the above.
