Maurice Tutor

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    Argosy University/ Phoniex University/
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Category > Management Posted 21 Mar 2018 My Price 6.00

spring of un-stretched length

A small block is connected to one end of a massless spring of un-stretched length 4.9 m.The other end of the spring (see the figure) is fixed. The system lies on a horizontalfrictionless surface. The block is stretched by 0.2 m and released from rest at t = 0. It thenexecutes simple harmonic motion with angular frequency3rad/s. Simultaneously att = 0, a small pebble is projected with speed v from point P at an angle of 45º as shown inthe figure. Point P is at a horizontal distance of 10 m from O. If the pebble hits the blockat t = 1 s, the value of v is (take g = 10 m/s2)(A)50m/s(B)51m/s(C)52m/s(D)53m/s

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Maurice Tutor
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Status NEW Posted 21 Mar 2018 07:03 AM My Price 6.00

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