CBSE Class 11-science Answered
13 no.
Asked by Harshhacker2580 | 28 Apr, 2020, 11:20: AM
Expert Answer
if v is the speed of bead at A , then its kinetic energy = (1/2) m v2
Forces acting on the bead = -mg - k ( x - R )
first term on RHS is due to weight and second term is due to spring force when spring is elongated to a distance x.
R is adius of hoop and also equals to natural length of spring
Hence workdone W on the bead is given by
= mgR +(1/2) k R2 By work-energy theorem , (1/2) m v2 = ( m g R ) + (1/2) k R2
Hence velocity of bead at A , v = [ ( 2 g R ) + (k/m) R2 ]1/2
Answered by Thiyagarajan K | 28 Apr, 2020, 04:07: PM
CBSE 11-science - Physics
Asked by rajeshabirami27 | 07 May, 2024, 04:31: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by yatin1043 | 06 May, 2024, 02:47: PM
ANSWERED BY EXPERT
CBSE 11-science - Physics
Asked by sheikhsaadat24 | 17 Apr, 2024, 09:41: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by sy123946 | 07 Apr, 2024, 04:23: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by derhebha955 | 03 Apr, 2024, 09:03: AM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by sumedhasingh238 | 29 Mar, 2024, 05:15: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by sumedhasingh238 | 28 Mar, 2024, 11:10: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by roshnibudhrani88 | 23 Mar, 2024, 05:52: PM
ANSWERED BY EXPERTCBSE 11-science - Physics
Asked by emad.amd | 21 Mar, 2024, 12:00: PM
ANSWERED BY EXPERT
