Questions from College Physics

Q: With the y-axis pointing north, rank vectors D,

With the y-axis pointing north, rank vectors D, E and F in Problem 8 in order of increasing y-component. Explain your reasoning.

Q: Rank, in order of increasing x-component, A+

Rank, in order of increasing x-component, A+B, B+C and A+C in Problem 4. The x-axis points to the right. Explain your reasoning.

Q: The velocity vector of a sprinting cheetah has x- and y

The velocity vector of a sprinting cheetah has x- and y-components vx = +16.4 m/s and vy = −26.3 m/s. (a) What is the magnitude of the velocity vector? (b) What angle does the velocity vector make wit...

Q: A person is doing leg lifts with 3.00 kg ankle

A person is doing leg lifts with 3.00 kg ankle weights. The lower leg itself has a mass of 5.00 kg. When the leg is held still at an angle of 30.0° with respect to the horizontal, the patel...

Q: A vector is 20.0 m long and makes an angle

A vector is 20.0 m long and makes an angle of 60.0° counterclockwise from the y-axis (on the side of the −x-axis). What are the x- and y-components of this vector?

Q: Vector A has magnitude 4.0 units; vector B has

Vector A has magnitude 4.0 units; vector B has magnitude 6.0 units. The angle between A and B is 60.0°. What is the magnitude of A+B?

Q: Find the x- and y-components of the four vectors

Find the x- and y-components of the four vectors shown in the drawing.

Q: In each of these, the x- and y-components

In each of these, the x- and y-components of a vector are given. Find the magnitude and direction of the vector. (a) x = −5.0 cm, y = +8.0 cm. (b) Fx = +120 N, Fy = −60.0 N. (c) vx = −13.7 m/s, vy...

Q: Vector b has magnitude 7.1 and direction 14° below

Vector b has magnitude 7.1 and direction 14° below the +x-axis. Vector c has x-component cx = −1.8 and y-component cy = −6.7. Compute: (a) the x- and y-components of b. (b) the magnitude and direction...

Q: Forces of magnitudes 2000 N and 3000 N act on five objects

Forces of magnitudes 2000 N and 3000 N act on five objects. The directions of the forces are shown in the sketches. Rank the objects according to the magnitude of the net force, from smallest to large...