Why are road accident at high speeds very much worse than accidents at low speeds?

Asked Muneem.

Answer:

As you might have studied, greater the speed, greater is the momentum. When an accidents occurs, the greater momentum involved can cause greater damage.

Please ferer to the links below for details

1. http://outreach.phas.ubc.ca/phys420/p420_96/danny/danweb.htm

2. http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/ben_townsend/PhysicsofCarCollisions.htm