The solutions to the equation

The identity

If an equation contains trigonometric functions of multiples of angles, such as

When writing the function

When transforming

A billiard ball rolling across a table at [v1] m/s makes a head-on elastic collision with an identical ball. Find the speed of the first ball after the collision when the second ball is initially at rest. Express your answer in m/s.

A billiard ball rolling across a table at [v1] m/s makes a head-on elastic collision with an identical ball.Find the speed of the first ball after the collision when the second ball is moving toward the first at a speed of [v2] m/s. Express your answer in m/s.

A [m]-kg particle has a speed of [vA] m/s at point A and a kinetic energy of [KB] J at point B. What is its kinetic energy at A? Express your answer in J.

A [m]-kg particle has a speed of [vA] m/s at point A and a kinetic energy of [KB] J at point B. What is the total work done on the particle as it moves from A to B? Express your answer in J.

A block of mass m=[m] kg is pulled up a