Question

A merry-go-round has a radius of 3.12m and a moment of inertia of 2800kg m2 about...

A merry-go-round has a radius of 3.12m and a moment of inertia of 2800kg m2 about the vertical axis through the center. It hsd wd40 so it turns without friction. A child applied a tangential force of 14 N for 13 s. The merry-go-round starts at rest.

What is the work done by the child during the 13s?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A playground merry-go-round has radius 2.40m and moment of inertia 2100kg?m2 about a vertical axle through...
A playground merry-go-round has radius 2.40m and moment of inertia 2100kg?m2 about a vertical axle through its center, and it turns with negligible friction. A child applies an 22.5N force tangentially to the edge of the merry-go-round for 19.0s . If the merry-go-round is initially at rest, what is its angular speed after this 19.0s interval? How much work did the child do on the merry-go-round? What is the average power supplied by the child?
A merry-go-round with a moment of inertia equal to 1250kg?m2 and a radius of 2.5 m...
A merry-go-round with a moment of inertia equal to 1250kg?m2 and a radius of 2.5 m rotates with negligible friction at 1.70 rad/s. A child initially standing still next to the merry-go-round jumps onto the edge of the platform straight toward the axis of rotation, causing the platform to slow to 1.35 rad/s.What is her mass?
A playground merry-go-round has a moment of inertia of 600 kg m2. When the merry-go-round is...
A playground merry-go-round has a moment of inertia of 600 kg m2. When the merry-go-round is at rest, a 20 kg boy runs at 5.9 m/s along a line tangential to the rim and jumps on, landing on the rim a distance of 3.0 m from the rotation axis of the merry-go-round. The angular velocity of the merry-go-round is then: A.1.2 rad/s B.0.38 rad/s C.0.45 rad/s D.0.56 rad/s E.0.72 rad/s
A 24.5kg child is standing on the outer edge of the horizontal merry go round that has a moment of inertia 989 kg*m^2 about a vertical axis through its center and a radius of 2.40m.
A 24.5kg child is standing on the outer edge of the horizontal merry go round that has a moment of inertia 989 kg*m^2 about a vertical axis through its center and a radius of 2.40m. the entire system including the child is initially rotating at 0.180 rev/s . find the angular velocity if the child moves to a new position 1.10m from the center of the merry go round.
A playground merry-go-round of radius R = 2.6 m has a moment of inertia of I...
A playground merry-go-round of radius R = 2.6 m has a moment of inertia of I = 200 kg*m^2. and is rotating at a rate of ω = 11 rev/min around a frictionless vertical axis. Facing the axle, a 39 kg child hops onto the merry-go-round and manages to sit down on the edge. What is the new angular speed of the merry-go-round (in rev/min)
A playground merry-go-round has a radius of 1.5 m and mass of 200 kg, and turns...
A playground merry-go-round has a radius of 1.5 m and mass of 200 kg, and turns with negligible friction about a vertical axle through its center. A child applies a constant force that produces a torque of 50 N·m to the merry-go-round. Its moment of inertia is given by I = ½MR2. The next four questions have to do with this rotating merry-go-round. Determine the angular acceleration of the merry-go-round in rad/s2. a. 0.047 rad/s2 b. 0.222 rad/s2 c. 0.965...
I start pushing a merry-go-round of radius of 1.9 meters with a tangential force of 29.8...
I start pushing a merry-go-round of radius of 1.9 meters with a tangential force of 29.8 N It has a moment of inertia of 187.7 kg m2. What is its rotational speed in rad/s after 3.85 seconds assuming it starts at rest?
A playground merry-go-round of radius 1.9 m has a moment of inertia 139 kg.m2 and is...
A playground merry-go-round of radius 1.9 m has a moment of inertia 139 kg.m2 and is rotating at 9 rev/min about a frictionless vertical axle. Facing the axle, a 27 kg child hops onto the merry-go-round, and manages to sit down on the edge. What is the new angular speed of the merry-go-round?
A playground merry-go-round with a moment of inertia of 300 kg m2 is rotating with no...
A playground merry-go-round with a moment of inertia of 300 kg m2 is rotating with no friction at an angular velocity of 2.3 rad/s. Sharon, whose mass is 70 kg, runs and jumps on the merry-go-round in such a way that after she jumps on it the merry-go round stops. How fast, in m/s was she running if the merry-go-round had a radius of 2.5 m? Enter only the numerical value of your answer to 2 significant figures. Do not...
A playground merry-go-round of radius ? = 2.0 m has a moment of inertia ? =...
A playground merry-go-round of radius ? = 2.0 m has a moment of inertia ? = 250 kg ⋅ m^2 is rotating at 15 rpm about a frictionless, vertical axle. Facing the axle, a 25-kg child hops onto the merry-goround and manages to sit down on the edge. (a) (10 pts) What is the total angular momentum of the ‘merry-go-round-child’ system before and after the child hops on the the merry-go-round? (b) (10 pts) What is the new angular speed,...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT