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(c) A 12kg cat is sitting 4.5m away from the center of a seesaw. At what...
biomechanics problem 1. A see-saw on a playground has a 45kg child sitting 2.5m from its...
biomechanics problem
1. A see-saw on a playground has a 45kg child sitting 2.5m from its fulcrum. a. His dog has a mass of 30kg. How far does the dog need to sit away from the fulcrum on the opposite side of the see-saw to make it balance? b. The dog's three 5kg puppies join her on the see-saw. How far from the fulcrum does the group need to move for the see-saw to continue balancing?
A seesaw consisting of a uniform board of mass and length supports at rest a father...
A seesaw consisting of a uniform board of mass and length supports at rest a father and daughter with masses my and respectively, as shown in the figure. The support (called the futrum) is under the center of gravity of the board, the father is a distance from the center, and the daughter is a distance from the center A balanced system ME (a) Determine the magnitude of the upward forcen exerted by the support on the board SOLUTION Conceptualize...
dont know what im doing wrong Suppose a 28.4-kg child sits 0.67 m to the left...
dont know what im doing wrong
Suppose a 28.4-kg child sits 0.67 m to the left of center on the same seesaw as the problem you just solved in the PRACTICE IT section. A second child sits at the end on the opposite side, and the system is balanced. (a) Find the mass of the second child. 8.55 kg (b) Find the normal force acting at the pivot point. 362 Your answers to part (a) and (b) are not consistent....
Need help with part C. Thank you! This is the figure above. However, it has different...
Need help with part C. Thank you!
This is the figure above. However, it has different values than
the homework question above.
PRACTICE IT Use the worked example above to help you solve this problem. A woman of mass m = 53.6 kg sits on the left end of a seesaw-a plank of length L = 4.39 m, pivoted in the middle as shown in the figure. (a) First compute the torques on the seesaw about an axis that passes...
4. A child sitting 2 meters from the center of a merry-go-round moves at a speed...
4. A child sitting 2 meters from the center of a merry-go-round moves at a speed of 2 m/s. Calculate (A) the centripetal acceleration of the child and (B) the horizontal force exe child (mass 22.5 kg). (A) 1 m/s2 b. 2 m/s2 c. 3 m/s2 d. 4 m/s2 e. 5 m/s2 a. 22.5 N b. 45 N c. 67.5 N d. 90N e. 112.5 N 5. If Earth was moved to a new orbit that was twice as far...
torque rotational equilibrium 2. A 10 kg cat walks along a 3 m long plank with...
torque rotational equilibrium
2. A 10 kg cat walks along a 3 m long plank with a mass of 4 kg that is supported by two sawhorses. The right sawhorse is 0.7 m from the end of the plank. How far from the end of the right sawhorse can she walk before tipping the plank over. 3. Nintendo has designed a new minigame for the next Sonic Party. In the game, players have to balance a rigid body. Where should...
Dr. C. #2. (PHYS 121 engineering design exercise) You have seen why cars inherently accelerate qu...
Dr. C. #2. (PHYS 121 engineering design exercise) You have seen why cars inherently accelerate quicker in a straight line and have better fuel mileage than an SUV with the same engine; it's because of air drag and the smaller frontal area and better drag coefficient of the car. Now let's think about why cars handle (take turns, change lanes and make other quick maneuvers) better than an SUV. We'l1 simplify our analysis by considering a vehicle of mass M...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions....
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4....
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4. timer 5. meter stick 6. micrometer 7. 2 photogates Assemble your ramp as shown in Figure (1) in the next page. Then set up photogates in location 2 and 3. Measure the diameter (in m) of the metal balls (you will need it for speed calculations). Then, measure the weight (mass) of the ball (in kg). To have a better measurement of the time,...
biomechanics problem
1. A see-saw on a playground has a 45kg child sitting 2.5m from its fulcrum. a. His dog has a mass of 30kg. How far does the dog need to sit away from the fulcrum on the opposite side of the see-saw to make it balance? b. The dog's three 5kg puppies join her on the see-saw. How far from the fulcrum does the group need to move for the see-saw to continue balancing?
A seesaw consisting of a uniform board of mass and length supports at rest a father and daughter with masses my and respectively, as shown in the figure. The support (called the futrum) is under the center of gravity of the board, the father is a distance from the center, and the daughter is a distance from the center A balanced system ME (a) Determine the magnitude of the upward forcen exerted by the support on the board SOLUTION Conceptualize...
dont know what im doing wrong
Suppose a 28.4-kg child sits 0.67 m to the left of center on the same seesaw as the problem you just solved in the PRACTICE IT section. A second child sits at the end on the opposite side, and the system is balanced. (a) Find the mass of the second child. 8.55 kg (b) Find the normal force acting at the pivot point. 362 Your answers to part (a) and (b) are not consistent....
Need help with part C. Thank you!
This is the figure above. However, it has different values than
the homework question above.
PRACTICE IT Use the worked example above to help you solve this problem. A woman of mass m = 53.6 kg sits on the left end of a seesaw-a plank of length L = 4.39 m, pivoted in the middle as shown in the figure. (a) First compute the torques on the seesaw about an axis that passes...
4. A child sitting 2 meters from the center of a merry-go-round moves at a speed of 2 m/s. Calculate (A) the centripetal acceleration of the child and (B) the horizontal force exe child (mass 22.5 kg). (A) 1 m/s2 b. 2 m/s2 c. 3 m/s2 d. 4 m/s2 e. 5 m/s2 a. 22.5 N b. 45 N c. 67.5 N d. 90N e. 112.5 N 5. If Earth was moved to a new orbit that was twice as far...
torque rotational equilibrium
2. A 10 kg cat walks along a 3 m long plank with a mass of 4 kg that is supported by two sawhorses. The right sawhorse is 0.7 m from the end of the plank. How far from the end of the right sawhorse can she walk before tipping the plank over. 3. Nintendo has designed a new minigame for the next Sonic Party. In the game, players have to balance a rigid body. Where should...
Dr. C. #2. (PHYS 121 engineering design exercise) You have seen why cars inherently accelerate quicker in a straight line and have better fuel mileage than an SUV with the same engine; it's because of air drag and the smaller frontal area and better drag coefficient of the car. Now let's think about why cars handle (take turns, change lanes and make other quick maneuvers) better than an SUV. We'l1 simplify our analysis by considering a vehicle of mass M...
Instructions for PHY 2048 Problem Set (PSET): (1) Please NEATLY write your name and your solutions. (2) You must use blank 8"x11" printer paper. (3) Begin each problem on a new page, and put your name on each page. Staple your pages together. 4) Only write on one side of the page. (5) You must write up your solutions independently (i.e. don't copy anyone else's solutions), using your own words and thought process. You must show all of your work....
Procedure: Materials: 1. apparatus 2. 2 pieces of metal track 3. plastic or metal ball 4. timer 5. meter stick 6. micrometer 7. 2 photogates Assemble your ramp as shown in Figure (1) in the next page. Then set up photogates in location 2 and 3. Measure the diameter (in m) of the metal balls (you will need it for speed calculations). Then, measure the weight (mass) of the ball (in kg). To have a better measurement of the time,...
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