1.

A street-light is hung 20 ft. above the ground .An object falls freely under the gravity, starting from rest at the same height as the lamp and at a horizontal distance of 5 ft. from it . When the object has fallen through 16 ft, the speed of the shadow of the object on the ground is

Answer»

`12 FT.//SEC`.
` 11 ft. //sec`
`10 ft. //sec`.
`12 .5 ft.//sec`.

ANSWER :D


Discussion

No Comment Found

Related InterviewSolutions