Option (c) is correct.
Explanation:
initial velocity along vertical=0
velocity along horizontal Vx=40.20 m/s
acceleration along the vertical=9.8 m/s²
displacement along vertical,h=2 m
using the kinematic equation
h= vi*t + 1/2 g t²
2=0(t) + 1/2 (9.8)t²
t²=0.408
t=0.639 s
now the displacement along vertical= x= Vx* t
x=40.20 (0.639)
x=25.73 m
It has acceleration while it's in your hand and you're in the process of flinging it, but we don't know how much.
It has acceleration ... pretty big ... during the short time between hitting the first blade of grass and coming to rest in the dirt, at the end of its trip.
From the time it leaves your hand until it hits the grass on the way down, its has the same constant, continuous acceleration ... 9.8 m/s^2 downward, the acceleration of gravity.
The greatest acceleration is probably at the end of the trip, after it hits the grass, and its speed drops to zero in a tiny fraction of a second.
Answer:
Elastic potential energy is stored when materials stretch or compress. Examples of it include springs, rubber bands, and slingshots.
Explanation:
Answer:
2.7 m/s²
Explanation:
Average acceleration is change in velocity over change in time. Assuming the acceleration is constant, we can say it is equal to the average:
a = Δv / Δt
a = (6.0 m/s - 0 m/s) / 2.2 s
a ≈ 2.7 m/s²
Fire is it that lives if it is fed, and dies if you give it a drink.
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Explanation:</u></h3>
Fire is very essential part of human life. It is used for cooking food and for other important activities. Without fire we cannot not survive. Something or the other should be heated before consumption and this can be achieved only with fir. It is also used in the darker places for viewing many things around us.
Thus, fire can survive if we give fuel or any wooden pieces and when water is poured on it it will turn off. Hence Fire is the one that survives when it is fed and dies when water is given as a drink to it.
