The car is moving forward with 10 N of force but the friction of the road applies 8 N of force in the opposite direction. What
are the combined forces acting on the car?

Two identical small charged spheres are a certain distance apart, and each one initially experiences an electrostatic force of magnitude f due to the other. with time, charge gradually leaks off of both spheres. when each of the spheres has lost half its initial charge, the magnitude of the electrostatic force will be

An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?