An object is dropped from a tower, 10241024 ft above the ground. the object's height above ground x seconds after the fall is
1 answer:
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Given that,
Horizontal velocity of the object, v = 20 m/s
Height of the cliff, h = 125 m
We need to find the time that it takes the object to fall to the ground from the cliff is most nearly. It can be calculated using second equation of motion. Let us consider that the initial speed of the object is 0. So,
Here, a = g and u = 0
So, the object will take 5 seconds to fall to the ground from the cliff.
Explanation:
A) use the formula:
B) use the formula:
with angular velocity u calculated in A)