Question

A body of mass 500 g is tied to one end of a string of length 1 m

Answer 1

0.1m/s,0.4m/s2,0.2N0.1m/s,

0.4m/s2,0.2N

0.1m/s,04m/s2,

0.1N0.1m/s,04m/s2,0.1N

0.2m/s,0.4m/s2,0.2N0.2m/s,0.4m/s2,0.2N

0.2m/s,0.3m/s2,0.2N0.2m/s,0.3m/s2,0.2N

Answer :

C

Solution :

ω=2πN=2π×1π=2rad/sω=2πN=2π×1π=2rad/s  

m=0.5kg,r=0.1mm=0.5kg,r=0.1m  

v=rω=0.1×2=0.2m/sv=rω=0.1×2=0.2m/s  

a=ω2r=(2)2×0.1=0.4m/s2a=ω2r=(2)2×0.1=0.4m/s2  

T=mω2r=0.5×0.4=0.2N

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