An object that has kinetic energy must have
- volume and acceleration.
- mass and velocity.
- speed and acceleration.
- elevation and mass.
A car is traveling at 100 km/s and skids four times as far as the same car at a different speed. What is that different speed of the car?
- 80 km/s
- 9.8 km/s
- 50 km/s
- 25 km/s
If an object is in neutral equilibrium, and any displacement neither raises nor lowers its center of gravity, this object is considered to be
____ 4.____ 5.A collision is considered inelastic if
- increased in its mass.
- lower in its center of gravity.
- there is deformation.
- the objects do not stick together.
- the objects that collide do not get warmer.
- there is no distortion of the objects.