SOLUTION: A plastic ball that is released with a velocity of 15 m/s stays in the air for 2.0 sec. a.) At what angle with respect to the horizontal was it released? b.) What was the maximum

Question 1044694: A plastic ball that is released with a velocity of 15 m/s stays in the air for 2.0 sec.
a.) At what angle with respect to the horizontal was it released?
b.) What was the maximum height achieved by the ball?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Time of flight is 2 v sub i * sin theta/g, g is 9.8 m/sec^2, t=2 sec
19.6 m/sec=2(15 m/sec)* sin theta
19.6/30=sin theta and it will be dimensionless.
0.65333=sin theta, and theta is 40.79 or 40.8 degrees.
h=v sub i ^2*sin^2 theta/g
=225 m^2/sec^2*0.427/9.8 m/sec^2, units will be meters.
without rounding until the end, this is 9.799 or 9.8 m.

RELATED QUESTIONS
The height, s, of a ball thrown straight down with initial speed 32 ft/sec from a cliff... (answered by rothauserc)

h=-16t+vt+s A ball is tossed into the air from a height of 10 feet with an initial... (answered by stanbon)

A ball thrown in the air with a velocity of 24.6 m/s is at a height represented by... (answered by stanbon)

A circus clown at the top of a 60-foot platform is playing catch with another clown on... (answered by Fermat,venugopalramana)

18. A circus clown at the top of a 60-foot platform is playing catch with another... (answered by venugopalramana)

A circus clown at the top of a 60-foot platform is playing catch with another clown on... (answered by venugopalramana)

1) A pistol that fires a signal flare gives it an initial velocity (muzzle velocity) of... (answered by Alan3354)

a person throws a ball upward into the air with an initial velocity of 15.0 m/s. a)... (answered by mananth)

Problem: The height (H) of the ball thrown into the air with an initial velocity of 9.8... (answered by ikleyn)