Question

A merry-go-round accelerates from rest to 0.74 rad/s in 34 s. Assuming the merry-go-round is a...

A merry-go-round accelerates from rest to 0.74 rad/s in 34 s.

Assuming the merry-go-round is a uniform disk of radius 6.0 m and mass 3.20×104 kg , calculate the net torque required to accelerate it.

Express your answer to two significant figures and include the appropriate units.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A merry-go-round accelerates from rest to 0.75 rad/srad/s in 36 ss. Assuming the merry-go-round is a...
A merry-go-round accelerates from rest to 0.75 rad/srad/s in 36 ss. Assuming the merry-go-round is a uniform disk of radius 8.0 mm and mass 3.10×104 kgkg , calculate the net torque required to accelerate it. Express your answer to two significant figures and include the appropriate units.
A child with a mass of 50 kg is standing at the edge of a merry-go-round...
A child with a mass of 50 kg is standing at the edge of a merry-go-round which has a radius of 3.50 m and a mass of 700 kg. The merry-go-around is initially at rest. The child throws a 1.20 kg stone perpendicular to the merry-go-round's radius at a speed of 6.0 m/s. What is the resulting angular speed of the entire system? Friction is negligible and the merry-go-round is a uniform disk. The child is classified as a point...
A 40 kg child (point mass) rides on the outer edge of a merry-go-round, which is...
A 40 kg child (point mass) rides on the outer edge of a merry-go-round, which is a large disk of mass 150 kg and radius 1.5 m. The merry-go-round spins with an angular velocity of 12 rpm. What is the merry-go-round’s angular velocity in radians per second (rad/s)? What is the total rotational inertia (moment of inertia) of the child and merry-go-round together? What is the rotational kinetic energy (in joules) of the merry-go-round and child together? What magnitude of...
On a playground, a merry-go-round with a total mass of 100 kg and a radius of...
On a playground, a merry-go-round with a total mass of 100 kg and a radius of 2.5mis rotating counterclockwise around its center with an angular speed of 0.5 rad/s. A girl with a mass of 40 kgruns at a speed of 4 m/s towards the edge of the merry-go-round and jumps on, as shown. What is the angularvelocity (magnitude and direction) of the merry-go-round after the girl lands on it? Assume the merry-go-roundis a uniform disk and treat the girl...
A 2300-kg Ferris wheel accelerates from rest to an angular speed of 0.16 rad/s in 10...
A 2300-kg Ferris wheel accelerates from rest to an angular speed of 0.16 rad/s in 10 s . Approximate the Ferris wheel as a circular disk with a radius of 24 m . What is the net torque on the wheel?
10 kids are riding on a merry-go-round. The merry-go-round has a radius of 3 m and...
10 kids are riding on a merry-go-round. The merry-go-round has a radius of 3 m and a mass of 2000 kg, and it is spinning with an angular velocity of 2 rad/s. The kids are riding at the rim of the merry-go-round, and they each have a mass of 30 kg. All of the kids jump radially off the merry-go-round, all at the same time. What would the angular velocity of the merry-go-round be after the kids jump off? Group...
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 is a large disk of mass 10.0 kg and radius 2.00 m. The...
A playground merry-go-round is a large disk of mass 10.0 kg and radius 2.00 m. The merry-go-round is initially at rest. A physics teacher pushes on the rim for 24.0 s to accelerate it with constant angular acceleration until the merry-go-round has completed a total of 9.00 full revolutions. a. What is the final angular velocity after 24.0 s? b. How much total work did the teacher do on the merry-go-round? (You may assume the axle for the merry-go-round is...
A person of mass 72 kg stands at the center of a rotating merry-go-round platform of...
A person of mass 72 kg stands at the center of a rotating merry-go-round platform of radius 3.3 m and moment of inertia 870 kg⋅m2 . The platform rotates without friction with angular velocity 0.90 rad/s . The person walks radially to the edge of the platform. part a: Calculate the angular velocity when the person reaches the edge. Express your answer using three significant figures and include the appropriate units. part b: Calculate the rotational kinetic energy of the...
At a playground, a 17-kg child sits on a spinning merry-go-round, as shown from above in...
At a playground, a 17-kg child sits on a spinning merry-go-round, as shown from above in (Figure 1).The merry-go-round completes one revolution every 6.2 s, and the child sits at a radius of r=1.8m. Part A What is the force of static friction acting on the child? Express your answer to two significant figures and include appropriate units. Part B What is the minimum coefficient of static friction between the child and the merry-go-round to keep the child from slipping?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT