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Based on the graph below, what does a represent?

Calculate the instantaneous velocity for the highlighted row (20m) for this table below: 

What is Dr. Mercer’s research area in biomechanics? 

A ball is launched from the ground at an angle of 25 degrees with a velocity of 12 m/s.  How high will the ball go? [answer1] How far will the ball go? [answer2] How long will the ball be in the air? [answer3] 

A student who is 1.70m tall throws a rocket (without air resistance) with a vertical velocity of 15 m/s and a horizontal velocity of 8m/s at an angle of 61.9 degrees. What is the horizontal velocity just before the rocket lands?   

The graph below shows an object’s position over time. Use the graph to answer the following question(s) During time period 1, the object’s velocity is: [answer1] During time period 2, the object’s acceleration is: [answer2] By the end of time period 3, the object has: [answer3]

A runner gets lost and needs to find their way back home. They find that if they travel 4 m/s due east they’ll be back on track. What type of variable is this? 

Categorize the following motion as being an example of either positive (+) or negative (-) velocity. Moving in the negative (-) direction and slowing down.

Calculate the instantaneous velocity for the highlighted row (40m) for this table below: 

Categorize the following motion as being an example of either positive (+) or negative (-) acceleration. Moving in the positive (+) direction and speeding up.