Question

5.
What should be the minimum height h so that the body of mass m just completes the loop of radius 1 m
h
(1) 5 m
(2) 2 m
(3) 2.5 m
(4) 1.5 m
.
.
plz refer the diagram and an soon​

Answer 1

Answer:

2.5

Explanation:

according to conservation of energy

loss in potential energy is equal to gain in kinetic energy.

so,

mgh = 1/2 mv^2 , while solving we get.....

H = 5r/2

thus putting r=1 we get

H= 2.5m

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