Mr. Starr pushed a cart full of groceries to his car. After emptying the cart, he pushed it back to the store. He pushed the cart at a speed of 2 meters per second each way. Which is the best prediction? (1 point)

Question

Mr. Starr pushed a cart full of groceries to his car. After emptying the cart, he pushed it back to the store. He pushed the cart at a speed of 2 meters per second each way. Which is the best prediction? (1 point)

O The carts kinetic energy depends on Mc Stan's mans

When it was empty, the cart had less kinetic energy

O The cart had the same kinetic energy going each way

When it was full, the cart had less kinetic energy

Answer 1

The best prediction is that the cart had the same kinetic energy going each way. Kinetic energy is dependent on the mass and velocity of an object, but the mass of the cart remained the same regardless if it was full or empty. Since the velocity remained constant at 2 meters per second, the kinetic energy would also be the same in both directions.