Answer: 15.87 m
From the equation of motion:
where, 
is the distance traveled, 
is the initial velocity, 
is the acceleration and 
is the time.
The rock free falls under gravity. Initial velocity, 
, 
It took 
for rock to hit the water.
Substitute the values in the given equation:
Hence, the water is 15.87 m below the top level of the well.
B is the correct answer . That make the most sense
Answer:
Explanation:
Sample Response: Yes, the law of conservation of momentum is satisfied. The total momentum before the collision is 1.5 kg • m/s and the total momentum after the collision is 1.5 kg • m/s. The momentum before and after the collision is the same.
Answer:
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Explanation:
we know
v=u-gt
At max height v=0
uy=usin30
now,25sin37=gt
15.07/9.8=t
t=1.53s to reach max height now to come on ground it takes same time
so time taken t=3.07s
We know ,range=ucos37×t
=25cos37×3.07
max distance=61.3meter
