The length of second hand of clock is 14cm, an ant sits on the top of second hand. find the following i) speed of ant
ii) distance covered by ant in 150 seconds
iii) displacement in 150 seconds

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?