2D Projectile Motion AP Physics SA review

The ball took 0.45 s to hit the ground 0.72 m from the table. What was the horizontal velocity of the ball as it rolled off the table?

• 0 m/s
• 0.63 m/s
• 1.6 m/s
• 2.2 m/s

What would the v-t graph look like for an object travelling at a constant velocity? 

• Curved line
• Straight line
• Horizontal line

What would the d-t graph look like for an object travelling at a constant velocity? 

• Horizontal line
• Straight line
• Curved line

Describe the motion in segment C

• Slowing down;  Positive direction
• Slowing down;  Negative direction
• Speeding up;  Negative direction
• Constant velocity;  Negative direction

The equation for finding average acceleration for straight-line motion is

• (V_i-V_f) x Time
• (V_f-V_i) / Time
• V_i+V_f+time
• V_i+V_f-time

Tags

NGSS.HS-PS2-1

Beau throws a baseball at 23.0 m/s at an angle of 25.0 degrees relative to the ground.If the ball was caught 42.0 m from Beau, find the components

• Vx=20.8 m/s
  Vy=9.72 m/s
• Vx=9.72 m/s
  Vy=20.8 m/s
• Vx=20.8 m/s
  Vy=19.72 m/s
• Vx=19.8 m/s
  Vy=9.72 m/s

A student performs an experiment to determine whether an object released from rest truly exhibits free-fall motion. The student takes data of distance d that the object has fallen at various times t after the object is released. If the object does exhibit free-fall motion, which of these graphs will be a line?

• d vs. t

• d vs. t²

• d² vs. t

• d² vs. t²

An airplane accelerates down a runway from rest at 3.20 m/s² for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff.

Which equation is appropriate?

• vf=vi+a*t

• x=vi*t+1/2at²

• vf²=vi²+2aX

• x=((vf+vi)/2)t

Tags

NGSS.HS-PS2-1

The graph above shows the velocity v as a function of time t for an object moving in a straight line. Which of the following graphs shows the corresponding displacement x as a function of time t for the same time interval?

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The graph on the right shows the velocity v as a function of time t for a thing moving in 1D motion. Which of the following graphs shows the corresponding displacement x as a function of time?

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