Question

A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.94...

A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.94 g coins stacked over the 38.7 cm mark, the stick is found to balance at the 48.7 cm mark. What is the mass of the meter stick?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Gravitational acceleration = g

Mass of the meter stick = M

Mass of each coin = m = 3.94 g

Number of coins = n = 2

Position where the stick is found to balance = X = 48.7 cm

Position of the coins = X1 = 38.7 cm

Position of the center of mass of the meter stick = X2 = 50 cm

Distance of the coins from the balance point = d1 = X - X1 = 48.7 - 38.7 = 10 cm

Distance of the center of mass of the meter stick from the balance point = d2 = X2 - X = 50 - 48.7 = 1.3 cm

Taking moment about the balance point,

M = 60.6 g

Mass of the meter stick = 60.6 g

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
1. A uniform meter stick is supported by a knife edge at the 50.0 cm mark...
1. A uniform meter stick is supported by a knife edge at the 50.0 cm mark and has a masse of 4.44 kg hanging from the 11.80 cm mark. A second mass of 7.04 kg should be hung at the _____ cm mark to keep the stick balanced? 2.
A uniform meter stick is supported by a knife edge at the 50.00 cm mark and...
A uniform meter stick is supported by a knife edge at the 50.00 cm mark and has masses od 0.20 kg and 0.50 kg hanging from the 20.00 cm and 85.00 cm marks respectively. Where should a third mass of 0.30 kg be hung to keep the stick balanced?
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum....
A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 44.0-gram mass is attached at the 24.5-cm mark, the fulcrum must be moved to the 39.2-cm mark for balance. What is the mass of the meter stick? ________g
A 75.0g meter stick initially balances on a fulcrum at the 49.1cm mark. The fulcrum is...
A 75.0g meter stick initially balances on a fulcrum at the 49.1cm mark. The fulcrum is then moved to the 65.0 cm mark and the following 3 masses are attached to the meter stick at the positions given and the meter stick is balanced. What the is position on the meter stick of Mass 3? Mass 1 = 50g, position = 75 cm mark Mass 2 = 20g, position = 15 cm mark Mass 3 = 55g, position = ?...
You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 95...
You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 95 g on a pivot. Stacked on the 0-cm end of the meter stick are n identical coins, each with mass m = 4.3 g, so that the center of mass of the coins is directly over the end of the meter stick. The pivot point will be measured from the 0-cm end of the meter stick. Determine the distance da in cm if there...
A particle of mass 0.350 kg is attached to the 100-cm mark of a meter stick...
A particle of mass 0.350 kg is attached to the 100-cm mark of a meter stick of mass 0.125 kg. The meter stick rotates on a frictionless, horizontal table with an angular speed of 6.00 rad/s. (a) Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark. _____ kg · m2/s (b) Calculate the angular momentum of the system when the stick is pivoted about an axis...
A meter stick is balanced at its 50.0 cm center of mass. Suppose a 20.0 g...
A meter stick is balanced at its 50.0 cm center of mass. Suppose a 20.0 g mass is now placed at the 40.0 cm position. What torque is being applied by this mass? Given data from ques 1, at what position would a 10.0 g mass have to be placed to achieve equilibrium? Suppose the 10.0 g mass is removed, and an unknown mass is now placed at the 90.0 cm position on the meter stick. Find this unknown mass....
A -5.00-μC point charge is placed at the 0.0 cm mark of a meter stick and...
A -5.00-μC point charge is placed at the 0.0 cm mark of a meter stick and a 4.00-μC point charge is placed at the 50.0 cm mark. At what point on a line through the ends of the meter stick is the electric field equal to zero?
A meterstick is supported by a knife-edge at the 50-cm mark. Doug hangs masses of 0.40...
A meterstick is supported by a knife-edge at the 50-cm mark. Doug hangs masses of 0.40 and 0.60 kg from the 5-cm and 70-cm marks, respectively. Where should Doug hang a third mass of 0.20 kg to keep the stick balanced? a. 90 cm b. 20 cm c. 80 cm d. 50 cm e. 10 cm
A particle of mass 0.300 kg is attached to the 100 cm mark of a meter...
A particle of mass 0.300 kg is attached to the 100 cm mark of a meter stick of mass 0.200 kg. The meter stick rotates on a horizontal, frictionless table with an angular speed of 4.00 rad/s.] (a) Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 75.0 cm mark. (b) What is the angular momentum when the stick is pivoted about an axis perpendicular to the table...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT