The research and design team of a car manufacturing company is developing a new safety product that automatically tests a car’s brakes. When the team discusses how exactly they plan to determine whether the new technology is successful or not

Write the equation for momentum, first using symbols for the variables, then using words for the variables.

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?