PHY SCI HN - Projectile Motion

A stone is thrown horizontally off of an 80 m high cliff at 5 m/s. What is the correct acceleration of the stone? (select all that apply)

• 0 m/s² in the x-direction

• -9.8 m/s² in the y-direction

• 0 m/s² in the y-direction

• -9.8 m/s² in the x-direction

A stone is thrown horizontally off of an 80 m high cliff at 5 m/s. How long will it take to reach the ground?

• 4.04 s

• 6.06 s

• 16.33 s

• 8.08 s

A stone is thrown horizontally off of an 80 m high cliff at 5 m/s. How far from the base of the cliff will it hit the ground?

• 5 m

• 10 m

• 15 m

• 20 m

A stone is thrown horizontally off of an 80 m high cliff at 5 m/s. With what final vertical velocity will the stone hit the ground?

• 5 m/s

• 8 m/s

• 10 m/s

• 13.24 m/s

A stone is thrown horizontally off of an 80 m high cliff at 5 m/s. With what final horizontal velocity will the stone hit the ground?

• 5 m/s

• 8 m/s

• 10 m/s

• 13.24 m/s

A bird is flying horizontally at a constant speed of 3 m/s. The bird poops and it hits you on the head 10 m away. How high was the bird flying?

• 3.3 s

• 54 m

• 16 m

• 33 m

Kiki slides a glass of milk across the 0.75 m high kitchen table to her brother Marcus. He doesn't notice, and the glass falls off the table and smashes to the ground 0.5 m away. How fast did she sling the glass of milk across the table?

• 0.153 m/s

• 0.39 s

• 1.28 m/s

• -9.8 m/s²

A plane is flying at a constant velocity of 200 m/s. An object falls from the plane and lands 1000 m away. How high was the plane flying?

• 122.5 m

• 25 m

• 1000 m

• 501.25 m

An archer fires an arrow horizontally from 1.5 m high and it lands 200 m away. How fast was the arrow traveling?

• 357 m/s

• 300 m/s

• 529 m/s

• 1240 m/s

Brian runs off of a 121 m high cliff in Hawaii at 7 m/s. How far from the base of the cliff will he hit the water?

• 35 m

• 40 m

• 80 m

• 17.23 m