1.

A horse running along a circular track of radius 27 ft passes over in 3 seconds an arc which subtends 70^@ at the centre. Find the distance the horse travels in half a minute.

Answer»

SOLUTION :`r=27m, theta=70^@=(7pi)/18` RADIAN
`:.s=rtheta=27xx(7pi)/18=33m` (approx)
`THEREFORE` DIATANCE passed over by the HORSE in 1/2 minute
=`(33)/3xx30=330m` (approx)


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