A 4900 n gear box with a mass of 500kg falls to the ground. What is it’s acceleration due to gravity?
1 answer:
Answer:
, towards the ground
Explanation:
For an object in free fall, the only force acting on it is the force of gravity. We can write it as
where
F is called weight of the object
m is the mass of the object
g is the acceleration due to gravity
We can re-arrange the equation as
For the box in the problem, we know:
F = 4900 N
m = 500 kg
Therefore, we can find the value of g:
And the direction is the same as the force of gravity (downward).
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Power is defined as the rate at which the body is doing work:
Work is defined as displacement done by the force times that displacement:
We know that we need 62N to move the box, so when we apply this force along the path of 10m we have done:
of work.
Now we just divide that by 5s to get how much power is required:
Work is defined as displacement done by the force times that displacement:
We know that we need 62N to move the box, so when we apply this force along the path of 10m we have done:
of work.
Now we just divide that by 5s to get how much power is required: