Problem 10: A small child with mass m is sitting on a see-saw a distance L...
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?
Name: PHYSICS 1111 armUp for 07 March are sitting on opposite sides of a see-saw at positions of 3 m from the son on the right has a fulcrum. The le the left has a mass of 50 kg and the person on the nght has a mass of 80 k person on a What is the net torque on the see-saw? b. Where would a 40 kg person have to sit on the see-saw in order to balance it?
solve 2. Three children are playing on a see-saw. Child A has a mass of 35 kg, child B has a mass of 25 kg and child C has a mass of 25 kg. A) How far from the fulcrum must child A sit if the system is balanced. B) What upward force must the fulcrum apply to the see-saw to keep it in linear equilibrium? 0.75 m
You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M= 8 kg, length L = 7 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of mass will be a...
(25%) Problem 4: You have been hired to design a family-friendly see-saw. Your design will feature a uniform board (mass M = 15 kg, length L = 11 m) that can be moved so that the pivot is a distance d from the center of the board. This will allow riders to achieve static equilibrium even if they are of different mass, as most people are. You have decided that each rider will be positioned so that his/her center of...
You are sitting a distance of 14:0 m from a small speaker which is playing music. The sound level at your location is 55:0 dB. Assuming that the waves emitted are approximately spherical, how far from the speaker should you sit if you want the sound level to be 8:00 dB?
Problem 6. v- (for both) A small block with mass m is sitting on a large block of mass M that is sloped so that the small block can slide down the larger block. There is no friction between the two blocks, no friction between the large block and the table, and no drag force. The center of mass of the small block is located a height H above where it would be if it were sitting on the table...
Problem 3: You kick a soccer ball of mass m initially on the ground with a speed v at an angle 0 above the horizontal direction (see Fig.1). Key Concepts: Impulse-Momentum Theorem, 2D kinematics, Conservation of Energy a) What is the average force you had to apply if, during the kick, you make contact with the ball for At seconds? b) What is the maximum height the ball reaches? hmax FIG. 1
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...