Word Problem need helpp !!

The world's largest four faced chiming clock is in London. The face of the clock is 7m in diametre, the minute hand is 4.3m and the hour hand is 2.7m LONG

1) Find the linear speed of the tip of the minute hand and the tip of the hour hand of the clock

2) If t is the angle described by the hands @ 4:00 taking the intial side of the angle to be the minute hand and the terminal side to be the hour hand, then what are the values of sin(t) and cos(t)

Can anyone help me with these questions? Thank you