Terminal Speed

Will a falling object accelerate indefinitely?
👁 321
statistics
calculate
Questions #: 7
Time: 5 minutes
Pass Score: 80.0%
Style
Mode

Falling objects do not continue to accelerate at 9.8 \(m/s^2\)

POINTS (1)

Correct Answer

Explanation

The acceleration of the object does not depend upon the net force acting on the object

POINTS (1)

Correct Answer

Explanation

Calculate the net force

If you knew the numerical values needed, how would you calculate the net force exerted on the ball shown in the figure?

falling_ball.jpg

POINTS (1)

Correct Answer

Explanation

As downward speed of falling objects increase, so does air resistance

POINTS (1)

Correct Answer

Explanation

A falling object downward speed increases

A falling object downward speed increases, so does air resistance.  Thus, there comes a time when air resistance equals the weight of the object.

POINTS (1)

Correct Answer

Explanation

Explaining Terminal Speed

As the downward speed of a falling object (1) transparent , so does air resistance.  Thus, there comes a time when air resistance (2) transparent the weight of the object.  At this speed the object no longer (3) transparent , but instead it continues at the same (4) transparent .  (This follows from F = ma, since if the net force is (5) transparent , the acceleration must also be (6) transparent .)  The final speed attained is called the object's (7) transparent .

drag and drop the selected option to the right place
exceeds
increases
equals
acceleration
greater zero
terminal speed
less than zero
final speed
POINTS (1)

Correct Answer

Explanation

Falling Rock

Consider a falling rock at a time when it is traveling at just less than terminal speed.  Will its acceleration be less than, equal to, or more than 9.8 m/s2 at this time?

POINTS (1)

Correct Answer

Explanation

Views:
Trials:
Avg score:
0
sin cos tan
sin-1 cos-1 tan-1 π e
xy x3 x2 ex 10x
y√x 3√x √x ln log
( ) 1/x % n!
7 8 9 + MS
4 5 6 – M+
1 2 3 × M-
0 . EXP ÷ MR
± RND C = MC

Document Actions