Free Fall: To determine the height of a flagpole, Abby throws a ball straight up and times it. She sees that the ball goes by the top of the pole after 0.50 s and then reaches the top of the pole again after a total elapsed time of 4.1 s. How high is the pole above the point where the ball was launched? Neglect air resistance.

A. 10 m
B. 13 m
C. 16 m
D. 18 m
E. 26 m


Answer: A

Physics & Space Science

You might also like to view...

Considering that the Sun is about 1/100 AU in diameter and a typical planet like Earth is 1/10,000 AU, discuss whether or not our Solar System is crowded or empty

What will be an ideal response?

Physics & Space Science

At t = 0, a wheel rotating about a fixed axis at a constant angular acceleration has an angular velocity of 2.0 rad/s. Two seconds later it has turned through 5.0 complete revolutions. What is the angular acceleration of this wheel?

A. 17 rad/s2 B. 14 rad/s2 C. 20 rad/s2 D. 23 rad/s2 E. 13 rad/s2

Physics & Space Science

A 4.0 kg mass is moving with speed 2.0 m/s. A 1.0 kg mass is moving with speed 4.0 m/s. Both objects encounter the same constant braking force, and are brought to rest. Which object travels the greater distance before stopping?

A) the 4.0 kg mass B) the 1.0 kg mass C) Both travel the same distance. D) Cannot be determined from the information given.

Physics & Space Science

A mass is attached to a fixed point by means of an ideal spring with zero unstretched length and is free to move in two dimensions

What would be the equivalent statement of Kepler's third law for this situation in the case of circular orbits around the fixed point?

Physics & Space Science