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A particle of unit mass is moved along a smooth horizontal surface by a force of magnitude [5 - k√s] N, where s is distance from a fixed poiny O on the surface. The force is directed always away from O on the surface. If it starts frok rest at O and comes to instantaneous rest again at 400m from O, the value of constant k will be 1. 3/8 2. 3/5 3. 2/3 4. 2/7

A particle of unit mass is moved along a smooth horizontal surface by a force of magnitude [5 - k√s] N, where s is distance from a fixed poiny O on the surface. The force is directed always away from O on the surface. If it starts frok rest at O and comes to instantaneous rest again at 400m from O, the value of constant k will be
1. 3/8
2. 3/5
3. 2/3
4. 2/7

Grade:12

1 Answers

RHYTHM KAUSHAL
askIITians Faculty 56 Points
3 years ago
Dear student,
follow the attached answer611-1090_15948850313167453284699408001260.jpg

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