a = 5.80 m/s. = 8.62 m/s.a = 10.4 m/s] 3. A child twirls his yo-yo...

Question

Question

a = 5.80 m/s. = 8.62 m/s.a = 10.4 m/s] 3. A child twirls his yo-yo horizontally about his head rather than using it properly.

Answer 1

Answer #1

m = 0.2 kg e = 0.8m w = 211 rad/s (a) = mrw² 0.2 x0.8 x (271)2 = 6.32 N (6) T = 2T = 12.633N Ta mv2 e 12.633 = 0.2 x v2 0.8 v

Please comment for any doubts.

Add a comment

Answer 2

Similar Homework Help Questions

A pendulum consists of a 1.4 kg stone swinging on a 4.3 m string of negligible...

A pendulum consists of a 1.4 kg stone swinging on a 4.3 m string of negligible mass. The stone has a speed of 8.1 m/s when it passes its lowest point. (a) What is the speed when the string is at 57 to the vertical? (b) What is the greatest angle with the vertical that the string will reach during the stone's motion? (c) If the potential energy of the pendulum-Earth system is taken to be zero at the stone's...
A pendulum consists of a 2.0 kg stone swinging on a 4.0 m string of negligible...

A pendulum consists of a 2.0 kg stone swinging on a 4.0 m string of negligible mass. The stone has a speed of 8 m/s when it passes its lowest point. (a) What is the speed when the string is at 60° to the vertical? (b) What is the greatest angle with the vertical that the string will reach during the stone's motion? (c) If the potential energy of the pendulum- Earth system is taken to be zero at the...
Tim attaches the string of a 0.10 kg yo-yo to his finger and releases the yo-yo...

Tim attaches the string of a 0.10 kg yo-yo to his finger and releases the yo-yo from rest. As the yo-yo spins down, Tim keeps his finger motionless which allows the yo-yo to be treated the same as a freely rolling object. After the yo-yo drops a distance of 0.90 m, it has a translational speed of 4.0 m/s and an angular speed of 180 rad/s. What is the moment of inertia of the yo-yo? Air resistance and friction are...

Question 15 Flying Circus of Physics A yo-yo has a rotational inertia of 1150 g.cmand a...

Question 15 Flying Circus of Physics A yo-yo has a rotational inertia of 1150 g.cmand a mass of 113 g. Its axle radius is 2.48 mm, and its string is 119 cm long. Suppose that this yo-yo is thrown so that its initial speed down the string is 1.29 m/s. (a) How long does the yo-yo take to reach the end of the string? As it reaches the end of the string, what are its (b) total kinetic energy, (c)...
Question 15 Flying Circus of Physics A yo-yo has a rotational inertia of 1150 g.cm2 and...

Question 15 Flying Circus of Physics A yo-yo has a rotational inertia of 1150 g.cm2 and a mass of 113 g. Its axle radius is 2.48 mm, and its string is 119 cm long. Suppose that this yo-yo is thrown so that its initial speed down the string is 1.29 m/s. (a) How long does the yo-yo take to reach the end of the string? As it reaches the end of the string, what are its (b) total kinetic energy,...
A stone with a mass of 3.20 kg is moving with velocity (6.20 - 2.209) m/s....

A stone with a mass of 3.20 kg is moving with velocity (6.20 - 2.209) m/s. (HINT: v2 - v.v.) (a) What is the stone's kinetic energy (in )) at this velocity? (b) Find the net work (in J) on the stone if its velocity changes to (8.00 +4.00) m/s.

Suppose a 0.390 kg ball is thrown at 17.0 m/s to a motionless person standing on...

Suppose a 0.390 kg ball is thrown at 17.0 m/s to a motionless person standing on ice who catches it with an outstretched arm as shown in the figure below. (a) Calculate the final linear velocity (in m/s) of the person, given his mass is 90.0 kg x m/s 07 (b) What is his angular velocity (in rad/s) if each arm is 3.00 kg? You may treat the ball as a point mass and treat the person's arms as uniform...
Question 1 (1 point) A car moving with an initial velocity of 100 m/s south has...

Question 1 (1 point) A car moving with an initial velocity of 100 m/s south has a constant acceleration of 10 m/s2 north. After 6 seconds its velocity will be 60 m/s south 40 m/s north 160 m/s north O40 m/s south Exdil Requires Respondus LockDown Browser Time Left:1:59:16 Jared Walker: Attempt 1 Question 2 (1 point) One end of a 1.00 m string is fixed and the other end is attached to a 2.00 kg stone. The stone swings...
A man does 4,650 J of work in the process of pushing his 3.40 times 10^3...

A man does 4,650 J of work in the process of pushing his 3.40 times 10^3 kg truck from rest to a speed of v, over a distance of 21.0 m. Neglecting friction between truck and road, determine the following. The speed v m/s the horizontal force exerted on the truck N A 0.42-kg particle has a speed of 2.0 m/s at point A and kinetic energy of 7.5 J at point B. What is its kinetic energy at A?...

1. A car, travelling at 30m/s slows to 10m/s in 5 seconds. What was the acceleration?...

1. A car, travelling at 30m/s slows to 10m/s in 5 seconds. What was the acceleration? A). -6 m/s B) 4m/s C).-2 m/s D). -9.8m/s 2. A ball thrown straight up takes 3 seconds to reach its maximum height. The height is most nearly B). 45m C). 60m D), 90 m A). 30m 3. A driver of a car wishes to pass a truck on the highway. Her car can accelerate at a constant 5m/s'. How long does it take...