What is the shortest distance d you need to walk forward to be at a point where you cannot hear the speakers? the forward direct
2 answers:
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Answer:
Moment of the force is 20 N-m.
Explanation:
Given:
Force exerted by the person is,
Distance of application of force from the point about which moment is needed is,
Now, we know that, moment of a force 'F' about a point at a perpendicular distance of 'd' from the same point is given as the product of the force and the perpendicular distance.
Therefore, the moment of the force about the end of the claw hammer is given as:
Hence, the moment of the force exerted by the person about the end of the claw hammer is 20 N-m.
Answer:
The block's mass should be
Explanation:
Given:
Cart with mass
From the conservation of energy before mass is added,
Where amplitude of spring mass system,
spring constant
Now new mass is added to the system,
Here, given in question frequency is reduced to half so we can write,
Where frequency of system before mass is added,
frequency of system after mass is added.
Therefore, the block's mass should be