Speed is the ratio of the distance an object moves to a. the direction the object moves. b. the amount of time needed to travel the distance. c. the motion of the object. d. the displacement of the object.

This diagram shows the movement of a skater at 1-second intervals. What is the magnitude of the average velocity, in m/s, if the skater went for a total of 12 meters? A) 3 m/s B) 4 m/s C) 12/5 m/s D) 48 m/s

What kind of simple machine is a swing

When a muscle is stretching by a contraction of the opposing muscle it is called

At the horizontal distance 33m from the bottom of a tree the angle of elevation to the top of the tree is 25 degrees. How tall is the tree?

Describe a situation where you might have high velocity but low acceleration

At a certain factory, 340 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.00 m/s. (A motor maintains the belt's constant speed.) The coefficient of kinetic friction between belt and crate is 0.400.

A hydraulic lift is used to lift a heavy box that is pushing down on a 1.5-m2 piston with a force of 1,700 N. What force needs to be exerted on a 0.12-m2 piston to lift the box?

Rauol's friend Johnny sets out from his house in the city. His displacement is 900 m 80° North of west. What is the x component of his displacement vector?

What is the relationship between gravity and mass? What is the relationship between gravity and distance?

A person performs 300 j of work over the course of 60 seconds how much power they did required