MMA Midterm Review #4

Front

What is the initial velocity of a ball dropped from a height?

Back

0 ft/sec

Front

What is the initial height of a ball thrown down from an 80 foot building?

Back

80 ft

Front

What is the equation of motion for a ball thrown down from a height with initial speed?

Back

y = -16t² - 25t + 80

Front

How do you determine the maximum height of a projectile?

Back

Use the vertex formula for a quadratic equation, h = -b/(2a) for the equation h = -16t² + bt + c.

Front

What is the initial height of a ball dropped from a 200 foot building?

Back

200 ft

Front

What does the variable 't' represent in projectile motion equations?

Back

Time in seconds since the object was released or kicked.

Front

What is the significance of the coefficient -16 in the height equation?

Back

It represents the acceleration due to gravity in feet per second squared.

Front

What is the formula for the height of a projectile at time t?

Back

h(t) = -16t² + vt + h₀, where v is initial velocity and h₀ is initial height.

Front

What is the maximum height of a projectile given the equation h = -16t² + 23.3t + 3.5?

Back

11.9 ft

Front

What is the effect of initial velocity on the trajectory of a projectile?

Back

Higher initial velocity increases the maximum height and distance traveled.