Homework Help is Here – Start Your Trial Now!
Science
Advanced Physics
7.4. Given: A = 4.0 m -2.0m and B -[-5.2007]. N = (a) Draw a diagram with both vectors starting at the origin and express both vectors as magnitude and direction. What is the angle between the two vectors? (b) Show that Ẩ × B = 16 Nm 2 by using the formula |A|B|sin and the right-hand rule. (c) Find A x B by using matrix multiplication: (A, By - Ay Bx) 2

7.4. Given: A = 4.0 m -2.0m and B -[-5.2007]. N = (a) Draw a diagram with both vectors starting at the origin and express both vectors as magnitude and direction. What is the angle between the two vectors? (b) Show that Ẩ × B = 16 Nm 2 by using the formula |A|B|sin and the right-hand rule. (c) Find A x B by using matrix multiplication: (A, By - Ay Bx) 2

icon
Related questions
Question

I need help on question 7.4?

7.4. Given: A = 4.0 m -2.0m - and B -[-5.2007]. N = (a) Draw a diagram with both vectors starting at the origin and express both vectors as magnitude and direction. What is the angle between the two vectors? (b) Show that Ẩ × B = 16 Nm 2 by using the formula |Ã||B| sin and the right-hand rule. (c) Find A x B by using matrix multiplication: (A, By – Ay Bx) 2 7.5. It's a rough approximation, but let's treat a spinning ice skater as a solid cylinder with a radius of 0.25 m. (a) If their mass is 55 kg, what is their rotational inertia? (b) Calculate the magnitude of the angular momentum of a 55 kg ice skater spinning 6 times a second. (c) Calculate the total kinetic energy of this skater if they are spinning at a rate of 6 rotations per second while traveling through the air at a rate of 2 m/s.
Transcribed Image Text:7.4. Given: A = 4.0 m -2.0m - and B -[-5.2007]. N = (a) Draw a diagram with both vectors starting at the origin and express both vectors as magnitude and direction. What is the angle between the two vectors? (b) Show that Ẩ × B = 16 Nm 2 by using the formula |Ã||B| sin and the right-hand rule. (c) Find A x B by using matrix multiplication: (A, By – Ay Bx) 2 7.5. It's a rough approximation, but let's treat a spinning ice skater as a solid cylinder with a radius of 0.25 m. (a) If their mass is 55 kg, what is their rotational inertia? (b) Calculate the magnitude of the angular momentum of a 55 kg ice skater spinning 6 times a second. (c) Calculate the total kinetic energy of this skater if they are spinning at a rate of 6 rotations per second while traveling through the air at a rate of 2 m/s.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 6 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer