Please help me with this question
A body is dropped from a height h from the state of rest. It covers a distance of 9h/25 in the last second. What is the height from which the body falls?(in meters)
A. 12.5
B. 1.25
C. 125
D. Zero
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Answered by
0
Answer:
Explanation:
Answer:
The height is 122.5 m.
b is correct.
Explanation:
Given that,
Distance in last second
Let us consider that a particle takes time t to reach the ground.
Using equation of motion
The total distance will be
....(I)
The particle covers the distance D' in (t-1)second
Using equation of motion again
....(II)
Divided equation (II) by equation(I)
Now, put the value of t in equation (I)
The height is
Answered by
0
Answer:
12.5
Explanation:
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