Question

hi plz ans in a sheet of paper only as i am struggling a lot ​

Answer 1

Time period (T) is the time taken by the ball to complete one revolution. It is denoted by 'T'. If 'r' is the radius of the circle of motion, then in time 'T' our ball covers a distance = 2πr.

Answer 2

rate of decrease in speed is called deceleration.

Time period is equal to 1/f where f=frequency .

Hope it helps

sweet dreams

bye