Atruck driver slams on the brakes and the momentum of the truck changes from < 89000, 0, 0 > kg·m/s to < 33000, 0, 0> kg·m/s in 3.3 seconds due to a constant force of the road on the wheels of car. as a vector, write the net force exerted on the truck by the surroundings. n

Who was the first scientist to measure speed as distance over time?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?