Відео

Calculate The resultant of the pair of velocities 100 km/h north and 75 km/h south. Calculate the resultant if both of the velocities are directed north.

Calculate the resultant velocity of an airplane that normally flies at 200 km/h if it encounters a 50 km/h tail wind. If it encounters a 50 km/h headwind.

Why Is it important that a satellite be above earths atmosphere? And what force acts on a satellite that is above earths atmosphere?

What Do we call a projectile that continually falls around the Earth? And how fast must a projectile moving horizontally travel so that the curve it follows matches the curve of earth?

Part a: Neglecting air resistance, if you throw a baseball at 20 m/s to your friend who is on first base. What is the final speed? Part B: with a resistance what happens to the change in speed?

Neglecting Air resistance, if you throw a ball straight up with a speed of 20 m/s, how fast will it be moving when you catch it?

12. At what angle should a slingshot be oriented for maximum altitude? For maximum horizontal range?

11. How far below an initial straight line path with a projectile fall in one second? And does your answer depend on the angle of launch or on the initial speed of the projectile? Defend your answer.

At The instant a ball is thrown horizontally over a range, a ball held to the side is released and drops to the ground too. If air resistance is neglected, which ball strikes the ground first?

Question #9 How does the downward component of the motion from a projectile compare with the motion of free fall?

Question #8 In the absence of air resistance, why does the horizontal component of velocity for a projectile remain constant while the vertical component change?

Question #7 why does a bowling ball move without acceleration when it rolls along a bowling alley?

Correction: The square root of 2 is 1.4142 The fraction (for the square root of 2) is 99/70 Question #6 Will a vector at 45 degrees to the horizontal be larger or smaller than its horizontal and vertical components? By how much?

5) Why do we say a rectangle is a special case of a parallelogram?

Lecture 1 - Chapter 3, review questions.

Lab 1 - Chapter 2, part 3

Lab 1 - Chapter 2, part 1

Lecture 30 - Chapter 2, review questions.

Lecture 29 - Chapter 2, review questions.

Lecture 28 - Chapter 2, review questions.

Lecture 27 - Chapter 2, review questions.

Lecture 26 - Chapter 2, Review questions.

Lecture 25 - Chapter 2, review questions.

Lecture 24 - Chapter 2, review questions.

Lecture 23 - Chapter 2, review questions.

Lecture 22 - Chapter 2, review questions.

Lecture 21 - Chapter 2, review questions.

Lecture 20 - Chapter 2, review questions.

Lecture 19 - Chapter 2, review questions.