6. Which shows that friction is desirable?
A. Friction converts some energy into beat
B. Friction help people to convert one form of motion into another motion
C. Friction make objects difficult to move continuosly
D. A and b
A. Friction converts some energy into beat
B. Friction help people to convert one form of motion into another motion
C. Friction make objects difficult to move continuosly
D. A and b
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Answer:
D. A AND B
friction is very much desirable to stop the body from its moving condition. ... If the friction is more between the block and inclined surface then a large force is required to push the block on the plane. Thus friction is desirable or undesirable depending upon the condition and types of work.
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