Practice Problems
Advanced Vertically Released Projectiles
Directions:
On this worksheet you will be solving problems involved with advanced vertically released projectiles.
omit
Question 1
A flower pot is accidentally knocked off the ledge of the roof banister. If is takes 2.4 seconds for the pot to fall past an occupant's 1.8-meter tall picture window, how far is the top of the window below the roof?
6.18 meters
11.01 meters
omit
Question 2
A projectile launcher, oriented at 90º, is placed 20 meters below a balcony railing. When the launcher vertically releases its pellet at 18 m/sec, a student on the balcony simultaneously drops an apple. How many seconds later will the two collide?
1.11 seconds
omit
Question 3
How far above the ground will the collision take place?
6.05 meters
13.95 meters
omit
Question 4
At the time of the collision, is the pellet rising or falling? That is, has it already reached its apex?
7.11 m/sec
still rising since its instantaneous velocity is positive
omit
Question 5
A student drops a coin down a tall elevator shaft. If it takes 4.5 seconds for the student to hear the sound of the coin hitting the floor, how deep is the shaft? The average temperature of the air in the shaft is 18ºC.
testing administrative mode
88.2 meters
74.00 meters
omit
Question 6
How much time did it take for the sound wave to travel up the shaft back to the student's ear?
0.26 seconds
3.92 seconds
2.25 seconds
omit
Question 7
A drop of water falls from a leaky gutter, and 1.8 seconds later, another drop falls. How far apart are the two drops when the first drop reaches a speed of 23.5 m/sec?
27.6 meters
15.9 meters
28.2 meters
PhysicsLAB
Copyright © 1997-2024
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton