Free Fall Motion

A stone is thrown vertically upwards with initial velocity 24 m s^-1. Calculate the displacement of the stone after 4.0 s.

• 17.52 m

• 20.32 m

• 9.62 m

• 2.03 m

A ball is thrown directly downward, with an initial speed of 8.00 m s^-1, from a

height of 30.0 m. After what time interval does the ball strike the ground?

• 1.82 s

• 0.82 s

• 3.82 s

• 4.32 s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A stone is thrown vertically upward with a speed of 15 m ^s−1. Find the position of the stone after 1 s.

• 5 m

• 6.36 m

• 7.52 m

• 10.10 m

Tags

NGSS.HS-PS2-4

A stone is thrown vertically upward with a speed of 15 m ^s−1. Find the velocity of the stone after 1 s.

• 7.19 ms^-1

• 3.19 ms^-1

• 6.19 ms^-1

• 5.19 ms^-1

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A stone is thrown vertically upwards with a speed of 20 m s^-1. Calculate the maximum height.

• 20.39 m

• 10.42 m

• -20.39 m

• -10.42 m

Tags

NGSS.HS-PS2-4

An object dropped from a window at a height of 7.34 m from the ground. Calculate the velocity of the object when it hits the ground.

• 12 ms^-1

• 144 ms^-1

• 32 ms^-1

• 120 ms^-1

Tags

NGSS.HS-PS2-4

A ball is released from a building at a height of 3 m from the ground. Calculate the velocity of the ball when it hits the ground.

• 58.86 ms^-1

• 7.67 ms^-1

• 90.65 ms^-1

• 8.86 ms^-1

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-2

When an object was released and drop down into the ground, the initial velocity should be...............

• 0 ms^-1

• 9.81 ms^-1

• -9.81 ms^-1

• none of the above

Tags

NGSS.HS-PS2-4