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Projectile Motion and Velocity Components

Projectile Motion and Velocity Components

Assessment

Interactive Video

Physics

10th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers a physics problem involving the trajectory of a ball thrown horizontally from a tower. It includes two main parts: proving the time at which the ball strikes the ground and showing that the horizontal distance is twice the height of the tower. The tutorial provides detailed derivations and addresses common mistakes made by students, emphasizing the importance of correct notation and understanding of angles.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial speed of the ball thrown horizontally from the tower?

v meters per second

g meters per second

h meters per second

d meters per second

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which equation represents the vertical displacement of the ball?

y = vt

y = h - 1/2 gt^2

x = h - 1/2 gt^2

x = vt

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At what time does the ball strike the ground?

t = sqrt(h/2g)

t = h/g

t = 2h/g

t = sqrt(2h/g)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What angle does the ball make with the positive x-axis when it strikes the ground?

90 degrees

45 degrees

135 degrees

180 degrees

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the gradient of the trajectory at the point of impact?

-1

2

1

0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between v and gt at the point of impact?

v = g/t

v = gt

v = g + t

v = t/g

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the horizontal distance d from the base of the tower?

d = 3h

d = h/2

d = 2h

d = h

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