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Distance does depend on a) Initial poi...

Distance does depend on _______
a) Initial point
b) Final point
c) Path taken
d) Speed

Text Solution

Verified by Experts

The correct Answer is:
A, D
From the figure

`costheta=(AC)/(AB)`
`rarr AC=Abcostheta`
`=(0.5)xx(0.8)=0.4`
`So, CD=(0.5)-(0.4)`
`=)(0.1)m`
Energy at D=energy at B`
`1/2 mv^2=mg(CD)`
`v^2=2xx10x(0.1)=2`
`So, the tension is given by
`T=(mv^2)/r+mg`
`(0.1)(2/0.5+10)=1.4N`
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