(b) Find the tangential acceleration at t -1s. (c) Find the magnitude of the acceleration at t1 A string wound on a rim of a wheel 20cm in diameter is pulled out at the rate of 75cm/s Through how many revolutions will the wheel have turned by the time that 9.0m of the string as been unwound. How long does it take? A car is moving on a circular path of radius 100m such that its speed is increasing at the rate of Sm st At t 0 it starts from rest. The radial acceleration of the car at the instant it makes plete round trip, will be e string breaks and the stone flies off horizontally and strikes the ground 10m away. ed of the particle moving in a circle of 2m in radius increases at the constant rate of A boy whirls a stone in a horizontal circle 2m above the ground by means of a string 1.52m ntripetal acceleration of the stone while in circular motion. t as as the some instant the magnitude of the top acceleration is 5m/sec At this instant, find tangenlial CX leration, (b) its speed

04. A car is moving on a circular path of radius 100m such that its speed is increasing at the rate of 5m st At t = 0 it starts from rest. The radial acceleration of the car at the instant it makes one complete round trip, will be