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 2.3 seconds for the pot to fall past an occupant's 1.7-meter tall picture window, how far is the top of the window below the roof?
10.53 meters
5.66 meters
omit
Question 2
A projectile launcher, oriented at 90º, is placed 13 meters below a balcony railing. When the launcher vertically releases its pellet at 17 m/sec, a student on the balcony simultaneously drops an apple. How many seconds later will the two collide?
0.76 seconds
omit
Question 3
How far above the ground will the collision take place?
10.13 meters
2.87 meters
omit
Question 4
At the time of the collision, is the pellet rising or falling? That is, has it already reached its apex?
still rising since its instantaneous velocity is positive
9.51 m/sec
omit
Question 5
A student drops a coin down a tall elevator shaft. If it takes 4 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 17ºC.
73.43 meters
testing administrative mode
70.5 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?
2.00 seconds
0.21 seconds
3.87 seconds
omit
Question 7
A drop of water falls from a leaky gutter, and 1.7 seconds later, another drop falls. How far apart are the two drops when the first drop reaches a speed of 22.5 m/sec?
25.9 meters
25.3 meters
14.2 meters
PhysicsLAB
Copyright © 1997-2017
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton