Math
posted by Merry go round .
Walking along the outer circular edge of a rotating merrygoround, Samantha completes one revolution in 11 sec walking one direction and 21sec walking the other direction. What is the rotational speed of the merrygoround?
Respond to this Question
Similar Questions

physics
A merry go round in the park has a radius of 1.8 m and a rotational inertia of 900 kgm^2. A child pushes the merry go round with a constant force of 80 N applied at the edge and parrallel to the edge. A frictional torque of 12 Nm … 
Physics
A merrygoround in the park has a radius of 1.8 m and a rotational inertia of 900 kgm^2. A child pushes the merrygoround with a constant force of 80 N applied at the edge and parallel to the edge. A frictional torque of 12 Nm acts … 
physics
A merrygoround in the park has a radius of 1.8 m and a rotational inertia of 900kgm^2. A child pushes the merrygoround with a constant force of 80 N applied at the edges and parallel to the edge. A frictional torque of 12 Nm acts … 
PHYSICS HELP!
A 3.6 m diameter merrygoround is rotating freely with an angular velocity of 0.78 rad/s. Its total moment of inertia is 1700 kg\m^2. Four people standing on the ground, each of mass 62 kg, suddenly step onto the edge of the merrygoround. … 
Physics
A 3.6 m diameter merrygoround is rotating freely with an angular velocity of 0.78 rad/s. Its total moment of inertia is 1700 kg m^2. Four people standing on the ground, each of mass 62 kg, suddenly step onto the edge of the merrygoround. … 
Physics
Which of the following events does not involve a change in angular momentum? 
Physics
A merrygoround is a common piece of playground equipment. A 2.4 m diameter merrygoround with a mass of 300 kg is spinning at 22 rpm. John runs tangent to the merrygoround at 5.0 m/s, in the same direction that it is turning, … 
Physics
A 3.6 diameter merrygoround is rotating freely with an angular velocity of 0.73 . Its total moment of inertia is 1600 . Four people standing on the ground, each of mass 60 , suddenly step onto the edge of the merrygoround.What … 
Physics
A child (48 kg) stands on the edge of a stationary merrygoround (uniform disk of radius 1.2 m and mass 50 kg). The child jumps off at 1.0 m/s with respect to the ground in the direction tangential to the edge. Find the angular speed … 
Physics
A merrygoround is a common piece of playground equipment. A 6.42m diameter merrygoround with a mass of 648.0kg is spinning at 39.4rpm. John runs tangent to the merrygoround at 6.36m/s, in the same direction that it is turning, …