If one soccer ball is rolling to the right at 3 m/s and another soccer ball is rolling left with a speed of 5 m/s, how much mome
1 answer:
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Answer:
The force needs to be applied on the 1 square meter piston to lift the machine is 200 N.
Explanation:
Given that,
Force,
Area,
We need to find the force needs to be applied on the 1 square meter piston to lift the machine. We know that the pressure at every point is same due to Pascal's law such that :
So, the force needs to be applied on the 1 square meter piston to lift the machine is 200 N. Hence, this is the required solution.
Explanation:
A worker picks up the bag of gravel. We need to find the speed of the bucket after it has descended 2.30 m from rest. It is case of conservation of energy. So,
h = 2.3 m
So, the speed of the bucket after it has descended 2.30 m from rest is 6.71 m/s.