State the principle of work-kinetic energy theorem.

The principle of work and kinetic energy (also known as the work-energy theorem) states that the work done by the sum of all forces acting on a particle equals the change in the kinetic energy of the particle.

×1+x2/2,y1+y2/2

summation of p= summationof m×v cm

torque is the product of f and perpendicular distance of f from the line of action itsunitsr newton metre

Explanation:

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.