In drag racing, the driver deploys a parachute at the end of the mile run. The parachute works well because
A) the dragster does not have any brakes to save weight.
B) the drag force due to the parachute is large at high speeds.
C) there is no rolling friction at high speeds.
D) the driver has no time to apply the brakes.
E) the deployment of the parachute is part of the show.

Question

In drag racing, the driver deploys a parachute at the end of the  mile run. The parachute works well because
A) the dragster does not have any brakes to save weight. 
B) the drag force due to the parachute is large at high speeds. 
C) there is no rolling friction at high speeds. 
D) the driver has no time to apply the brakes. 
E) the deployment of the parachute is part of the show.

Quizplus · Accepted Answer

The parachute works well because at high speeds, the drag force due to the parachute is large enough to slow down the dragster quickly and safely. Option A, C, D, and E are incorrect as they are irrelevant to why a parachute is used in drag racing.

In Drag Racing, the Driver Deploys a Parachute at the End