Answer:
(a) D(t)= -4.9 t^2 + vt
(b) 10 sec
(c) 122.5m
(d) At t= 4sec, v= 9.8m/s (upwards) and at t= 9sec, v= 39.2m/s (downwards)
(e) -24.5m
(f) -49m/s (i.e. downwards)
(g) 0
Step-by-step explanation:
(b) Time in the air = 2v/g = 10sec
(c) Maximum height = 
=122.5m
(d) Velocity at any time t = v -9.8t
So, at t= 4sec, velocity = 49 – 9.8(4) =9.8m/s
at t= 9sec, velocity = 49 – 9.8(9) = -39.2m/s
(e) Average velocity = 
= -24.5m
(g) the stone is thrown vertically upwards, so no horizontal distance covered.
The answer is $1219
Interest = Total amount * interest rate * time (
I=prt is the formula for calculating interest)
In this case,
Total amount = $1200
Interest rate= $ 0.19
Time span for which interest rate is being calculated= 1/12
(since the rate is yearly and we are calculating interest for a month)
Interest = 1200*0.19*1/12 = 19
So the total amount owned by family at the end of one month
= original amount + interest = $1200 +
$19 = $1219
Formula to convert Radians to degrees or Degrees to radians:
Degree/180° = Radian/π
In the problem we have 105.32° to convert into Radian:
105.32/180 = Radian/π
And Radian = (π).(105.32)/180° = 1.838 Radian
Answer:
Ab -c
Step-by-step explanation:
multiply both sides by B
Then subtract C Brainliest please!
(17 1/3) / 24 = x/1
cross multiply
24x = 52/3
x = 52/3 * 1/24
x = 52/72 = 13/18 inches per hr
