Exploring Projectile Motion with Zero Launch Angle

How does a ball roll off a cliff in projectile motion?

• It rolls off and moves in a zigzag motion.

• It rolls off and moves in a circular motion.

• It rolls off and moves in a diagonal motion.

• It rolls off and falls straight down.

What is the initial velocity of Rolina's spear in the x direction?

• 15 meters per second

• 45 meters per second

• 0 meters per second

• 30 meters per second

How far is the target from Rolina if the spear takes 0.28 seconds to reach it?

• 8.4 meters

• 5.6 meters

• 10.2 meters

• 12.8 meters

By how much does Rolina's spear miss the bullseye vertically?

• 0.492 meters

• 0.392 meters

• 0.292 meters

• 0.192 meters

What is the acceleration in the y direction due to gravity used in the problems?

• -9.8 meters per second squared

• -10 meters per second squared

• -8.8 meters per second squared

• -11 meters per second squared

What is the initial velocity in the y direction when Rolina throws the rock horizontally?

• 0 meters per second

• 30 meters per second

• 10 meters per second

• 20 meters per second

What is the initial velocity in the x direction when Rolina throws the rock?

• 15.81 meters per second

• 12.81 meters per second

• 10.81 meters per second

• 18.81 meters per second

How long does it take for the lion to fall from the cliff to the water?

• 1 second

• 2 seconds

• 4 seconds

• 3 seconds

How far from the base of the cliff does the lion strike the water?

• 18.2 meters

• 17.2 meters

• 16.2 meters

• 15.2 meters

What is the lion's landing speed when it hits the water?

• 19.77 meters per second

• 20.77 meters per second

• 21.77 meters per second

• 22.77 meters per second