From a mechanical perspective, it is easier to pull an object than to push it.

From a mechanical perspective, it is easier to pull an object than to push it. 

Answer: true

A motionless object sitting on a motionless surface, with no horizontal force application, has no friction.

A motionless object sitting on a motionless surface, with no horizontal force application, has no friction. 

Answer: true

Harder running surfaces result in greater ground reaction forces.

Harder running surfaces result in greater ground reaction forces. 

Answer:  false

Elite sprinters display greater impulse against the starting blocks than sub-elite sprinters.

Elite sprinters display greater impulse against the starting blocks than sub-elite sprinters. 

Answer: true

New blade designs have resulted in extremely low values for the kinetic friction coefficients of ice hockey skates on ice.

New blade designs have resulted in extremely low values for the kinetic friction coefficients of ice hockey skates on ice. 

Answer: true

An impact resulting in the total loss of velocity would be called a perfectly _______________ impact.

An impact resulting in the total loss of velocity would be called a perfectly _______________ impact.

Answer: plastic