Horizontal & Vertical Velocity Components

A projectile is launched at a speed of 900 m/sec and angle of 30°. The vertical component of the launch velocity is:

• 450 m/sec

• 520 m/sec

• 780 m/sec

• 900 m/sec

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

An object is launched horizontally from a cliff.  The time it takes to hit the ground is

• more than if it was just dropped
• less than if it was just dropped
• the same amount of time than if it was just dropped
• impossible to determine

At which of the following places does a projectile have the least velocity?

• At the peak of its trajectory

• Half way to the peak

• At the instant it is launched

• All points have the same velocity

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. What is the vertical component of the ball’s velocity?

• 24.9 m/s

• 60.1 m/s

• 0 m/s

• 171 m/s

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. What is the horizontal component of the ball’s velocity?

• 60.1 m/s

• 24.9 m/s

• 65 m/s

• 171 m/s

Which of the following would NOT be considered a projectile? 

• a cannonball thrown straight up
• a cannon ball rolling down a slope
• a cannonball rolling off a table
• a cannonball thrown in the air

Tags

NGSS.HS-PS2-2

The acceleration of the vertical component during the whole trip is always...

• 0 m/s²

• 3.6 m/s²

• 5 m/s²

• -9.8 m/s²

Tags

NGSS.HS-PS2-1

The acceleration of the horizontal component during the whole trip is always...

• 0 m/s²

• 3.6 m/s²

• 5 m/s²

• -9.8 m/s²

Tags

NGSS.HS-PS2-1

Objects launched at an angle have two component vectors. What are they? (SELECT TWO ANSWERS)

• v_x= v_i cos Θ

• v_y= v_i sin Θ

• v_y= v_i cos Θ

• v_x= v_i sin Θ