The time needed for the hammer to reach the surface of the Earth is 3.54 s.
The time of motion is calculated as follows;
t = √(2h/g)
where;
t = √(2 x 10 / 1.6)
t = 3.54 s
Thus, the time needed for the hammer to reach the surface of the Earth is 3.54 s.
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Answer:
-273.15 degree celcius
Explanation:
Data given:
Δx=1500m
v=330m/s
t=?
Formula:
V=Δx/t
Solution:
t=1500m/330m/s
t=4.5s
Explanation: simple kinematics
we suppose that initially vo= 0 so if the skier moves 4s :
vf = vo +at = 0 + 3*4 = 12 m/s
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