2D Motion

Neglecting air resistance, what it the horizontal velocity (V_X) at A?

• 5 m/s

• 0 m/s

• -10 m/s

• -30 m/s

What is the acceleration at A, and in what direction?

• 5 m/s²

• 9.8 m/s²

• -9.8 m/s²

• -30 m/s²

What would the resultant velocity at F?

• 30.4 m/s

• 30 m/s

• 10 m/s

• 0 m/s

What is v_iy for a horizontal launch ALWAYS?

• 0 m/s
• -10 m/s
• 10 m/s
• Depends on v_x

How much time elapses before the box hits the ground? 

• 320 s
• 17.9 s
• 1600 s
• 155 s

Tags

NGSS.HS-PS2-1

The more mass an object has, the faster it will fall.

• True
• False

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

If I throw a crayon straight up at 12m/s, what is its speed when I catch it at the same height?

• 6 m/s

• 12 m/s

• 18 m/s

• 24 m/s

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which will hit the ground first?

• Shot Bullet

• Dropped Bullet

• Hit at Same Time

• Need the mass of the bullet to determine the time in air.

If a bullet is horizontally shot at the same moment another bullet is dropped from the same height, which has a larger vertical speed when they hit the ground?

• Shot Bullet

• Dropped Bullet

• Same for Both

• Need the mass of the bullet to determine vertical speed