20. The model of the universe that suggests that the sun is the center of the universe was first brought by
1 answer:
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Answer:
Y=1370.23m
Explanation:
The motion have two moments the first one the time the initial velocity is accelerating then when the engines proceeds to move as a projectile
Now the motion the rocket moves as a projectile so:
Now the final velocity is the initial in the second one
The maximum altitude Vf=0
So total altitude is both altitude of the motion so:
Acceleration is defined as rate of change in velocity
So we can write its formula as
here we know that
= final velocity = 56 m/s
= initial velocity = 7.6 m/s
t = time interval to change the velocity = 3 s
now we will plug in all values in the above equation
so here roller coaster will accelerate at rate of 16 m/s^2 and hence correct answer is "option d"