1. SMDEP Physics Projectile Motion continued, Uniform circular motion, Centripetal acceleration

2. Ch.3, #54 give the acceleration in cm per sec 2 1.71 2.333 3.212 4.4.7 5.Other 6.Didn’t finish

3. Ch.3, #56 give the acceleration in m per sec 2 1.0.034 2.0.34 3.3.4 4.34 5.Other 6.Didn’t finish

4. Ch.3, #61 how much time? 1.5.8 sec 2.46.2 sec 3.78.0 sec 4.23.1 sec 5.Other 6.Didn’t finish

5. Ch.3, #83 What is the minimum push-off speed? 1.1.9 m/s 2.2.7 m/s 3.4.3 m/s 4.19 m/s 5.Other 6.Didn’t finish

6. A navy ship simultaneously fires two shells at enemy ships. The shells follow the trajectories shown in the diagram. Which enemy ship gets hit first? 1.A (left) 2.B (right) 3.Neither – they get hit at the same time. 4.Not enough information to tell.

7. Consider executing the following motions in a 5- second period: 1.You make a right turn at constant speed. 2.You make a U-turn at constant speed. 3.You make a 360- degree turn at constant speed. For which case is the average acceleration the largest?

8. Q. Zookeepers try to capture a monkey that is hanging from a branch by shooting at it with a tranquilizer gun. They aim directly at the monkey, but at the instant they fire the gun, the monkey lets go of the branch. Neglecting air resistance, the bullet 1.Passes above the monkey 2.Passes below the monkey 3.Hits the monkey 4.Hits the monkey provided the bullet moves fast enough

9. Consider a cannonball that can be shot at fixed initial speed but at any angle. For what angle is the magnitude of the initial velocity maximum? (Neglect air resistance) 1.90 degrees (straight up) 2.0 degrees (horizontal) 3.45 degrees 4.None of the above 5.The angle doesn’t affect the magnitude of the initial velocity

10. Consider a cannonball that can be shot at fixed initial speed but at any angle. For what angle is the distance traveled maximum? (Neglect air resistance) 1.90 degrees (straight up) 2.0 degrees (horizontal) 3.45 degrees 4.30 degrees 5.None of the above 6.The angle doesn’t affect the distance traveled