Conservation of Energy TUHS + NJCTL Slides 83-100

What is the velocity of the object at the bottom?

• 6.5 m/s

• 15 m/s

• 7.39 m/s

• 4.5 m/s

What is the velocity of the object after the puddle?

• 6.2 m/s

• 3.54 m/s

• 15 m/s

• 0 m/s

What is the speed of the object at the bottom?

• 6.5 m/s

• 5.8 m/s

• 4.6 m/s

• 5.7 m/s

What is the speed of the object at the bottom?

• 8.7 m/s

• 8 m/s

• 46 m/s

• 5.7 m/s

What is the speed of the object at the top?

• 3.54 m/s

• 4.6 m/s

• 5.7 m/s

• 8.6 m/s

What is the final velocity of the object?

• 5.6 m/s

• 2.34 m/s

• 3.68 m/s

• 4.6 m/s

What force did the hammer exert on the nail?

• 17,000 N

• 4,530 N

• 3,200 N

• 8,700 N

2sf

(a)  

2s4

(a)  

12What is the change of GPE for a 8.0 kg object which

is lowered from an initial height of 2.0 m above the

floor to a final height of 1.5m above the floor?

Round to 3 sig figs, no units, rememebr your direction!

(a)