RECALL

What shape did the trajectory have?

• parabola
• square
• line
• circle

Who first described the projectile motion?

• Isaac Newton
• Galileo Galilei
• Albert Einstein
• Nikola Tesla

What is the curve path a projectile follows through space as a function of time?

• Parabolic trajectory
• Spiral trajectory
• Straight line trajectory
• Circular trajectory

Why horizontal velocity is constant?

• The object is experiencing a constant acceleration
• Because gravity did not work horizontally

• Because the object is moving at a constant speed
• Due to the gravitational force acting horizontally

The higher the angle of projection, the higher the object will launched.

• True
• Only if the object is round
• Depends on the weight of the object
• False

Which of the following is the value of gravity?

• 9.8 m/s^2

• 7.32 m/s^2
• 3.14 m/s^2
• 5.67 m/s^2

WHICH POINT HAS HIGHER VELOCITY? POINT D OR B?

• Point D

• Point B

Which of the following is the variable for angle?

• d_x

• V_i

• d_y

• θ