Projectile Motion: A projectile is shot horizontally at 23.4 m/s from the roof of a building 55 m tall and experiences negligible air resistance.(a) Determine the time necessary for the projectile to reach the ground below.(b) Determine the distance from the base of the building that the projectile lands.(c) Determine the horizontal and vertical components of the velocity just before the projectile reaches the ground.
What will be an ideal response?
(a) 3.4 s (b) 78 m (c) vhoriz = 23.4 m/s, vvert = 33 m/s downward
You might also like to view...
An electron traveling due north with speed 4.0 × 105 m/s enters a region where the Earth's magnetic field has the magnitude 5.0 × 10-5 T and is directed downward at 45° below horizontal. What force acts on the electron?
A) 2.3 × 10-18 N B) 3.2 × 10-18 N C) 2.3 × 10-19 N D) 3.2 × 10-19 N E) 2.3 × 10-20 N
What is an atom made of?
A.) Photons and electrons. B.) Photons, gravitons, and strange quarks. C.) Protons, neutrons, and electrons. D.) Positrons and electrons. E.) Neutrons, photons, and W bosons.
Rover eats 0.50 pound of dry dog food per day. How many 5.0-kilogram sacks of dog food does his owner need to buy in a year?
A) 17 B) 25 C) 52 D) 80 E) 81
A container is filled with a mixture of helium (light molecules) and oxygen (heavy molecules) gases. A thermometer in the container reads 22°C. Which gas molecules have the greater average speed?
A) It is the same for both of the gases because the temperatures are the same. B) The oxygen molecules do because they are diatomic. C) The oxygen molecules do because they are more massive. D) The helium molecules do because they are less massive. E) The helium molecules do because they are monatomic.