A rock is dropped from a top of hill and strikes the ground 6 seconds later. how much is the height of hill?
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Answered by
5
the height of the hill (in feet) is 2 ft.
I hope this helped you. #Aliviya
I hope this helped you. #Aliviya
Answered by
16
Here , we have following -
Time (t) = 6sec
Initial velocity (u) = 0
Acceleration due to gravity (a) = 9.8 m/s²
So, we will use formula of kinematics to find distance (s) -
s = ut + (1/2) × at²
or, s = 0× 6 + 1/2 × 9.8 × 6²
or, s= 1/2 × 9.8 × 36
or, s = 9.8 × 18
or, s = 176.4m
Answer ) Height of the hill is 176.4 m
Time (t) = 6sec
Initial velocity (u) = 0
Acceleration due to gravity (a) = 9.8 m/s²
So, we will use formula of kinematics to find distance (s) -
s = ut + (1/2) × at²
or, s = 0× 6 + 1/2 × 9.8 × 6²
or, s= 1/2 × 9.8 × 36
or, s = 9.8 × 18
or, s = 176.4m
Answer ) Height of the hill is 176.4 m
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