Asked by James
A Knight of the Round Table fires off a vat of
burning pitch from his catapult at 17 m/s, at
29
◦
above the horizontal.
The acceleration of gravity is 9.8 m/s
2
.
How long is it in the air?
Answer in units of s
burning pitch from his catapult at 17 m/s, at
29
◦
above the horizontal.
The acceleration of gravity is 9.8 m/s
2
.
How long is it in the air?
Answer in units of s
Answers
Answered by
drwls
The initial vertical velocity component Vyo determines the time in the air.
Vyo = 17 sin29 = 8.24 m/s
Vy becomes zero at
t = Voy/g = 0.84 s
Double that time to include the time coming back down.
Vyo = 17 sin29 = 8.24 m/s
Vy becomes zero at
t = Voy/g = 0.84 s
Double that time to include the time coming back down.