Identify one force acting on the cart.

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

The air that we breath is made mostly of which gaseous molecule

1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?