A body of mass 2kg is pulled by means of a horizontal force 10N on a rough surface of coefficient of
friction 0.1. Find the velocity acquired by the body after 5 sec.
Answers
Answered by
2
Answer:
Normal Reaction on the body=N=mg=5×10=50N
Horizontal force acting on the bodyF
H
=25N
Frictional force acting on the body F
f
=μN=0.2×50=10N
Net force acting on the body F
net
=F
H
−F
f
=25−10=15N
By work-energy theorem,
KE acquired by the body= Work done on the body=F
net
.s=15×10=150J
Answered by
1
Answer: Normal Reaction on the body=N=mg=5×10=50N
Horizontal force acting on the body F
H
=25N
Frictional force acting on the body F
f
=μN=0.2×50=10N
Net force acting on the body F
net
=F
H
−F
f
=25−10=15N
By work-energy theorem,
KE acquired by the body= Work done on the body=F
net
.s=15×10=150J
Explanation:
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