Ever tried to stop a 150-pounds (68 kg )cannonball fired towards you at 30 mph (48 km/hr)? No, probably not. but you have tried to brace yourself in a car collision. How are the two situations similar?

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

What is the coldest temperature ever recorded in san antonio?

The ima of the following pulley system is