Answer:
the distance of the top of the window below the windowsill from which the flowerpot fell is 0.31 m
Explanation:
given information:
time, t = 0.420 s
height, h = 1.9 m
the the vertical motion equation:
h = t +
where
h = height (m)
= initial velocity (m/s)
t = time (s)
g = gravitational force (9.8 )
first we calculate the velocity of the flowers pot when it reaches top window
h = t +
1.9 = (0.42) + ()
= (1.9 - ())/0.42
= 2.47 m/s
now we can find the distance of the windowsil
+ 2gh
v = 0, thus
2gh = -
h = -/2g
= / (2 x 9.8)
= 0.31 m
Answer:
See below
Explanation:
100 km / 45 km/hr = 2.222 hr
100 km / 30 km/hr =3.3333 hr
Difference = 1.111 hr = 1 hr 6 2/3 min
The answer for getting and using every,reproducing and maintaining structure are out of life