Jeno is pulling a crate with 10 N of force while Jaemin is also pulling the same crate in the opposite direction with 25 N of applied force. What is the total net force acting on the object?

It is the product of force and displacement in the direction of the force.

Which of the following statements about Gravitational Potential Energy is/are TRUE?

Which of the following is the correct SI unit for Work?

It is the force needed to produce a unit of elongation of the spring.

 Elastic potential energy is given by  $\frac{1}{2}kx^2$  where x stands for:

It is the property of a body that tends to resist a change in its state of motion.

In Newton's second law of motion, the mass of an object is inversely proportional to its acceleration whilst acceleration is directly proportional to the force applied.

A weight of 50 N means that the Earth is pulling down the object by a force of 9.8 N. In turn, the object is pulling the Earth up by a force of 100 N.

The elongation of spring stretched by a force of 70 N is 0.15 m. What is the potential energy of the spring if it is stretched by 0.25 m and its spring constant is 467 Nm ?

A crane lift a load of steel with a force of 450 N at a distance of 40 m. It takes 2 minutes to complete the task. How much power does the crane produce? Tip: Convert minutes to seconds!

The force that does positive work on the box is:

The force that does negative work on the box is:

The force that does NO work on the rock is: