Question

A rod AB of mass 10 kg and length 4 m rests on a horizontal floor w hered is 100). The height to which the end B be raised vertically above the floor is vertical. Work done on the rod is 100). The height to which the end B be raised vertically above the floor is (c) 1.0 m (b) 2.0 m (a) 1.5 m (d) 2.5 m​

Answer 1

The height to which the end B be raised vertically above the floor is 2 m.

Explanation:

Given data:

Mass of rod = 10 kg

Length of rod = 4 m

work done on the rod = 100 J

To find height "h" = ?

Using the formula

W = mgh / 2

100 = 10 x 10 x h / 2

h = 200 / 100

h = 2 m

Thus The height to which the end B be raised vertically above the floor is 2 m.

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