Question
starting from rest an object hits the water with a speed of 60 km/h from what height did the object start from above the water
Answers
Answered by
GPT 3.5
To find the height from which the object was dropped, we can use the equation of motion:
v^2 = u^2 + 2as
where:
v = final velocity = 60 km/h = 16.67 m/s
u = initial velocity = 0 m/s (object starts from rest)
a = acceleration due to gravity = 9.81 m/s^2
s = distance or height
Plugging in the values, we get:
(16.67)^2 = (0)^2 + 2(9.81)s
278.9 = 19.62s
s = 14.21 meters
Therefore, the object was dropped from a height of 14.21 meters above the water.
v^2 = u^2 + 2as
where:
v = final velocity = 60 km/h = 16.67 m/s
u = initial velocity = 0 m/s (object starts from rest)
a = acceleration due to gravity = 9.81 m/s^2
s = distance or height
Plugging in the values, we get:
(16.67)^2 = (0)^2 + 2(9.81)s
278.9 = 19.62s
s = 14.21 meters
Therefore, the object was dropped from a height of 14.21 meters above the water.