Advertisements
Advertisements
प्रश्न
Which of the following statements is correct?
विकल्प
Work done by static friction is always zero.
Work done by kinetic friction is always negative.
Potential energy decreases when conservative force does Positive work.
Work-energy theorem is Valid only for newtonian frames.
MCQ
उत्तर
Potential energy decreases when conservative force does Positive work.
Explanation:
Work done by conservative force, Wc = -ΔU
If Wc is positive, then ΔU negative.
So, the potential energy decreases.
shaalaa.com
Types of Forces
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
