CHOOSE the Kinematic EQ of Motion

Given:  
 $v_i=10\frac{m}{s}\ \ \ \ \ldots\ \ \ \ v_f=15\frac{m}{s}\ \ \ \ldots\ \ \ \ a=10\ \frac{m}{s^2}$  
Which equation would you choose to solve for time?

•  $v_f=v_i+at$  

•  $d=\ \ \frac{(v_i+v_f)}{2}t$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

• Cannot be done in a single step

Tags

NGSS.HS-PS2-1

Given:  
 $v_i=0\frac{m}{s}\ \ \ldots\ \ \ t=8.5\ s\ \ \ldots\ \ a=1.6\frac{m}{s^2}$  
Which equation would you choose to solve for Final Velocity?

•  $v_f=v_i+at$  

•  $d=\ \ \frac{(v_i+v_f)}{2}t$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

• Cannot be done in a single step

Tags

NGSS.HS-PS2-1

Given:
 $v_i=0\frac{m}{s}\ \ \ \ldots\ \ \ \ v_f=-15\frac{m}{s}\ \ \cdots\ \ \ a=-9.8\frac{m}{s^2}$ 
Which equation would you choose to solve for displacement (distance)?

• $v_f=v_i+at$

• $d=\ \ \frac{(v_i+v_f)}{2}t$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• Can't be done in a single step

Given:
 $v_i=0\frac{m}{s}\ \ \ \ \ldots\ \ \ \ v_f=25\frac{m}{s}\ \ \ \ \ldots\ \ \ \ d=250\ m$ 
Which equation would you choose to solve for acceleration?

• $v_f=v_i+at$

• $d=\ \ \frac{(v_i+v_f)}{2}t$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• Cannot be done in a single step

Tags

NGSS.HS-PS2-1

Given:
 $d=-25m\ \ \ \ldots\ \ \ v_i=0\frac{m}{s}\ \ \ \ldots\ \ \ \ a=-9.8\frac{m}{s^2}$ 
Which equation would you choose to solve for time?

• $v_f=v_i+at$

• $d=\ \ \frac{(v_i+v_f)}{2}t$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• Cannot be done in a single step

Given:
 $d=-25m\ \ \ \ldots\ \ v_i=0\frac{m}{s}\ \ \ \ldots\ \ v_f=12\frac{m}{s}$ 
Which equation would you choose to solve for time?

• $v_f=v_i+at$

• $d=\ \ \frac{(v_i+v_f)}{2}t$

• $d=v_it+\frac{1}{2}at^2$

• $v_f^2=v_i^2+2ad$

• Cannot be done in a single step

Given:  
 $v_i=10\frac{m}{s}\ \ \ \ldots\ \ d=20m\ \ \ \ldots\ \ \ a=5\frac{m}{s^2}$  
Which equation would you choose to solve for Final Velocity?

•  $v_f=v_i+at$  

•  $d=\ \ \frac{(v_i+v_f)}{2}t$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

• Cannot be done in a single step

Given:  
 $v_f=10\frac{m}{s}\ \ \ldots\ \ \ d=50m\ \ \ \ldots\ \ \ a=0.5\frac{m}{s^2}$  
Which equation would you choose to solve for Initial Velocity?

•  $v_f=v_i+at$  

•  $d=\ \ \frac{(v_i+v_f)}{2}t$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

• Cannot be done in a single step

Given:  
 $v_f=5\frac{m}{s}\ \ \ldots\ \ \ t=10s\ \ \ldots\ \ a=0.8\frac{m}{s^2}$  
Which equation would you choose to solve for Initial Velocity?

•  $v_f=v_i+at$  

•  $d=\ \ \frac{(v_i+v_f)}{2}t$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

• Cannot be done in a single step

Tags

NGSS.HS-PS2-1

Given:  
 $d=24m\ \ \ldots\ \ t=8s\ \ \ \ldots\ \ \ a=0.8\frac{m}{s^2}$  
Which equation would you choose to solve for Initial Velocity?

•  $v_f=v_i+at$  

•  $d=\ \ \frac{(v_i+v_f)}{2}t$  

•  $d=v_it+\frac{1}{2}at^2$  

•  $v_f^2=v_i^2+2ad$  

• Cannot be done in a single step