A 1500 kilogram railroad car is moving with a velocity of 4.0 meters per second in a direction that is 20° north of east.
In the diagram below, starting from point P, draw a vector
that represents the railroad car's momentum using a scale
of 1.0 centimeter = 2.0 x 10 kilogram-meter per second.

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?