Posted by **joyce** on Friday, October 31, 2008 at 2:36am.

a) if a particle's speed decreases by a factor of four, by what factor does its kinetic energy change?

b) particle A has three times the mass and twice the kinetic energy of particle B. What is the speed ratio VA / VB?

## Answer this Question

## Related Questions

- physics - A particle has a kinetic energy equal to its rest energy. (a) What is ...
- Physics kinetic energy - Okay the equation for kinetic energy is = 1/2mv^2 so ...
- Physics - A 245 g particle is released from rest at point A inside a smooth ...
- Physical Science - Can someone please check these answers for me? Write T for ...
- Physics - A single conservative force F(x) acts on a 1.6 kg particle that moves ...
- Chem please help - An object A has half the mass and twice the velocity of ...
- physics-help please........ - The momentum and the kinetic energy of particle A ...
- physics - A 278 g particle is released from rest at point A inside an smooth ...
- Chemistry(Please check) - 1) choose the correct statement about the postulates ...
- Physics - The kinetic energy of a massive particle is equal to the energy of a ...