a 33 kg kid on a sled is moving at speed 18 m/s and comes to rest after a distance of 18m. calculate the magnitude of the net force that is slowing the sled down

If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?

Discuss the difference between thermal energy and heat. (terrance) terrance, egolf, r., congdon, donald. physical science student text, 5th edition. bju press, 2014. vitalbook file.

What is the quantity which is measured by the area occupied below the velocity- time graph?