Johnny often hits his brother even though his brother does not do anything to antagonize him. johnny's aggression is most likely due to a combination of

The velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

What happens to the velocity of the car when the upward pull of the cable is greater than the downward pull of gravity as the car rises toward the top?