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Recitation class презентация
Содержание
- 1. Recitation class
- 2. Chapter 2
- 3. [Problem 29] A car moving at a
- 4. [Problem 29] A car moving at a
- 5. [Problem 58] An object falls a distance
- 6. [Problem 58] An object falls a distance
- 7. [Problem 58] An object
- 8. [Problem 58] An
- 9. [Problem
- 10. 1.00 s
- 11. 1.00 s
- 12. 1.00 s
- 13.
- 14.
- 15.
- 16. 1.00 s
- 17.
- 18.
- 19.
- 20. 1.00 s
- 21. Chapter 4
- 22.
- 23.
- 24. Chapter 5
- 25.
- 26. (a) (b) before
- 27. [Problem 67] The figure shows three blocks
- 28. [Problem 67] The figure shows three blocks
- 29. [Problem 67] The figure shows three blocks
- 30. [Problem 67] The figure shows three blocks
- 31. Chapter 6
- 32. [Problem 10] In the figure, a block
- 33. W/2
- 34. W/2
- 35.
- 36.
- 37.
- 38. (a) accelerations of the block
- 39.
- 40. boom car is
- 41.
- 42.
- 43.
- 44.
- 45.
- 46.
- 47. car and
- 48. car and
- 49. car and
Слайд 3[Problem 29] A car moving at a constant velocity of 46
m/s passes a traffic cop who is readily sitting on his motorcycle. After a reaction time of 1.0s, the cop begins to chase the speeding car with a constant acceleration of 4.0 m/s^2. How much time does the cop need to overtake the speeding car?
Слайд 4[Problem 29] A car moving at a constant velocity of 46
m/s passes a traffic cop who is readily sitting on his motorcycle. After a reaction time of 1.0s, the cop begins to chase the speeding car with a constant acceleration of 4.0 m/s^2. How much time does the cop need to overtake the speeding car?
Car
Car
Car
Слайд 5[Problem 58] An object falls a distance h from rest. If
it travels 0.60h in the last 1.00 s, find (a) the time and (b) the height of its fall. (c) Explain the physically unacceptable solution of the quadratic equation in t that you obtain.?
Слайд 6[Problem 58] An object falls a distance h from rest. If
it travels 0.60h in the last 1.00 s, find (a) the time and (b) the height of its fall. (c) Explain the physically unacceptable solution of the quadratic equation in t that you obtain.?
Слайд 7
[Problem 58] An object falls a distance h from rest. If
it travels 0.60h in the last 1.00 s, find (a) the time and (b) the height of its fall. (c) Explain the physically unacceptable solution of the quadratic equation in t that you obtain.?
Слайд 8
[Problem 58] An object falls a distance h from rest. If
it travels 0.60h in the last 1.00 s, find (a) the time and (b) the height of its fall. (c) Explain the physically unacceptable solution of the quadratic equation in t that you obtain.?
Слайд 9
[Problem 58] An object falls a distance h from rest. If
it travels 0.60h in the last 1.00 s, find (a) the time and (b) the height of its fall. (c) Explain the physically unacceptable solution of the quadratic equation in t that you obtain.?
1.00 s
Слайд 18
We take
Why?
Negative time indicates a time before the object was
dropped
Answer of (c)
1.00 s
Слайд 27[Problem 67] The figure shows three blocks attached by cords that
loop over frictionless pulleys. Block B lies on a frictionless table; the masses are mA = 6.00 kg, mB = 8.00 kg, and mC = 10.0 kg. When the blocks are released, what is the tension in the cord at the right?
Слайд 28[Problem 67] The figure shows three blocks attached by cords that
loop over frictionless pulleys. Block B lies on a frictionless table; the masses are mA = 6.00 kg, mB = 8.00 kg, and mC = 10.0 kg. When the blocks are released, what is the tension in the cord at the right?
mCg
mAg
TC
Assume a clockwise motion
(Downward is positive for block C,
Rightward is positive for block B,
Upward is positive for block A.)
Слайд 29[Problem 67] The figure shows three blocks attached by cords that
loop over frictionless pulleys. Block B lies on a frictionless table; the masses are mA = 6.00 kg, mB = 8.00 kg, and mC = 10.0 kg. When the blocks are released, what is the tension in the cord at the right?
mCg
mAg
TC
Assume a clockwise motion
(Downward is positive for block C,
Rightward is positive for block B,
Upward is positive for block A.)
Слайд 30[Problem 67] The figure shows three blocks attached by cords that
loop over frictionless pulleys. Block B lies on a frictionless table; the masses are mA = 6.00 kg, mB = 8.00 kg, and mC = 10.0 kg. When the blocks are released, what is the tension in the cord at the right?
mCg
mAg
TC
Assume a clockwise motion
(Downward is positive for block C,
Rightward is positive for block B,
Upward is positive for block A.)
The force for just on block C:
Слайд 32[Problem 10] In the figure, a block of weight W experiences
two applied forces, each of magnitude W/2. What coefficient for static friction between the block and the floor puts the block on the verge of sliding?
W/2
W/2
Слайд 33
W/2
W/2
W/4
W
[Problem 10] In the figure, a block of weight W experiences
two applied forces, each of magnitude W/2. What coefficient for static friction between the block and the floor puts the block on the verge of sliding?
Слайд 34
W/2
W/2
W/4
W
[Problem 10] In the figure, a block of weight W experiences
two applied forces, each of magnitude W/2. What coefficient for static friction between the block and the floor puts the block on the verge of sliding?
