What is the momentum of a 89-kilogram ice skater gliding across the ice at a speed of 9 m/s? kg-m/s
1 answer:
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Answer:
The ball takes 5s to reach the ground
Explanation:
in order to solve this problem we use the kinematics equation with gravity as acceleration:
we replace the values
We solve this quadratic equation:
t=5s
t=-6s (this solution has not physical sense)