Jorge asked, "Where are the apples?" Which sentence revises the sample sentence to the indicative mood? Where are the apples? Jo
2 answers:
You might be interested in
Answer:
(a)
(b) 142
(c)
(d) 96.8 mph
(e) 0.426 s
(f) 0.061 rad
Explanation:
Velocity is a time-derivative of position.
(a)
(b) Since is independent of
, it follows it was constant throughout. Hence, at any point or time, the horizontal velocity is 142.
(c)
(d) When it passes the home plate, the ball has travelled 60.5 ft (from the question). This is horizontal, so it is equivalent to .
.
In this time, the vertical velocity, is
The speed of the ball at thus point is ft/s
To convert this to mph, we multiply the factor 3600/5280
(e) The time has been determined from (d) above.
(f) This angle is given by
(Note here we are considering the acute angle so we ignore the negative sign)
In radians, this is