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Question
Which of the following ways depict the usefulness of a machine?
Which of the following ways depict the usefulness of a machine?
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Solution
The correct options are
A In lifting heavy load by using less effort
C Changing the direction of effort
D Changing the point of application of force to a convenient point
The four ways in which machines are useful to us are:
1. In changing the point of application of force to a convenient point.
2. In changing the direction of effort to a convenient direction.
3. In lifting heavy load by using less effort.
4. For obtaining a gain in speed.
A In lifting heavy load by using less effort
C Changing the direction of effort
D Changing the point of application of force to a convenient point
The four ways in which machines are useful to us are:
1. In changing the point of application of force to a convenient point.
2. In changing the direction of effort to a convenient direction.
3. In lifting heavy load by using less effort.
4. For obtaining a gain in speed.
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