# Physics

posted by .

How much force would need to be exerted on a merry-go-round with a mass of 178 kg and a radius of 2.4 m to make the speed of a child sitting on the edge 1.5 m/s within 5 seconds having started from rest?

## Similar Questions

1. ### Physics

In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to …
2. ### Physics

In a playground, there is a small merry-go-round of radius 1.20 m and mass 190 kg. Its radius of gyration (see Problem 85 of Chapter 10) is 91.0 cm. A child of mass 44.0 kg runs at a speed of 4.50 m/s along a path that is tangent to …
3. ### PHYSICS

a child sitting 1.10 m from the center of a merry go round moves with a speed of 1.25 m/s. calculate the centripetal acceleration of the child and the net horizontal force exerted on the child (mass = 25 kg).
4. ### physics

A merry go round in the park has a radius of 1.8 m and a rotational inertia of 900 kg-m^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 …
5. ### physics

A merry go round makes 2 revolutions every 2 s. A child is sitting 1.80 m from the center. Calculate a)The period of the merry go round b)the speed of the child in his position c) the centripetal acceleration of the child d) the net …
6. ### College Physics

A 40 kg child is standing on the edge of a merry-go-round in a playground. Before they were deemed too dangerous, these were quite common. They were just huge rotating platforms you could sit on while someone spun you around in uniform …
7. ### Physics

A child of mass m is playing on a merry-go-round which has mass 6m and radius r. Assume the merry-go-round is a uniform disk. The child is standing on the edge of the merry-go-round, which is spinning with an angular speed ω1. …
8. ### Physics

A child (48 kg) stands on the edge of a stationary merry-go-round (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 …
9. ### physics

A child of mass 52 kg jumps onto the edge of a merry-go-round of mass 170 kg and radius 1.9 m that is initially at rest as sketched in the figure below. While in the air (during her jump), the child's linear velocity in the direction …
10. ### physics

A playground merry-go-round of radius 2.00 m has a moment of inertia I = 255 kg·m2 and is rotating about a frictionless vertical axle. As a child of mass 25.0 kg stands at a distance of 1.00 m from the axle, the system (merry-go-round …

More Similar Questions