Apart from actually falling, this often occurs during sharp accelerations caused by leaning too far or too quickly.
Most of the increase has come from a sharp acceleration in exports, while imports have slowed slightly.
The technical changes in the rival programs signal a sharp acceleration in the evolution of consumer software that has been brought on by the Internet.
The drive to modernize the transport system that began in 1978 required a sharp acceleration in investment.
What happened this week was a sharp acceleration of a process that started in the mid-Eighties.
The final maneuver along any track was a sharp acceleration straight toward the machine.
For the individual, the move toward Ad-hocracy means a sharp acceleration in the turnover of organizational relationships in his life.
Some sprinters have a high top speed but may take a longer distance to achieve it, while others can produce short and sharp accelerations.
That kind of sharp acceleration can mess up your insides.
That's a sharp acceleration from the 1990's, when home values in Roslyn Heights grew about 16 percent, according to census figures.