Projectile Motion Quiz #1
Physics HN Virtual
1. A ball dough rolls horizontally off the edge of a countertop that is 1.30 m high. It strikes the
floor at a point 1.95 m horizontally from the table edge.
a. How long is the dough in the air? (5 pts)
b. What is its speed at the instant it leaves the table? (5 pts)
2. A cannon ball is fired horizontally from a cannon that is 72.0 m above flat ground, emerging
from the cannon with a speed of 230 m/s. (5 pts)
a. How long does the cannon ball remain in the air? (5 pts)
b. At what horizontal distance from the firing point does it strike the ground? (5 pts)
c. What is the magnitude of the vertical component of its velocity as it strikes the ground? (5 pts)
d. What is the resultant velocity of the cannon ball as it strikes the ground? (5 pts)
Bonus!!
Tom the cat is chasing Jerry the mouse across the surface of a table 1.75 m above the floor. Jerry
steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 4.50
m/s. What is Tom’s resultant velocity as he strikes the ground? (5 pts)
