Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the surface of the door. One child pusnes witn a force of 19.5 N at a distance of 0.595 m from the hinges, and the second child pushes at a distance of 0.465 m. What is the magnitude of the force, in newtons, the second child must exert to keep the door from moving? Assume friction is negligible. F2 =

Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the surface of the door. One child pusnes witn a force of 19.5 N at a distance of 0.595 m from the hinges, and the second child pushes at a distance of 0.465 m. What is the magnitude of the force, in newtons, the second child must exert to keep the door from moving? Assume friction is negligible. F2 =

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 117AP: Two children push on opposite sides of a door during play. Both push horizontally and perpendicular...

See similar textbooks

Similar questions

In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace the central knot to one side or the other. Two students pull with force 196 N each to the light, four students pull with force 98 N each to the left, five students pull with force 62 N each to the left, three students pull with force 150 N each to the right, and one student pulls with force 250 N to the left. Assuming the positive direction to the tight, express the net pull on the knot in terms of the unit vector. How big is the net pull on the knot? In what direction?
Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 17.5 N at a distance of 0.600 m from the hinges, and the second child pushes at a distance of 0.450 m. What force must the second child exert to keep the door from moving? Assume friction is negligible.
Ed and Al are pushing on a couch as shown in the picture and it doesn't slip. EC Ec Ed is pushing with a force of 362.8 N at an angle of 0 = 50.3 degrees with respect to the vertical and Al is pushing with a force of 126.8 N at an angle of o = 29 degrees with respect to the horizontal. If the couch has a mass of 98 kg and the coefficients of static and kinetic friction between the couch and the floor are ug = 0.52, and u = 0.39, what is the magnitude of the force of friction exerted by the floor on the couch? Click here for a hint F =
A block of weight w is suspended from a rope tied to two other ropes at point O. One rope ishorizontally attached to a wall and the other is fastened to the ceiling. The angle betweenceiling and the rope is 60°. What are the tensions in each of the ropes? Assume the weights ofthe ropes and the knots are negligible. If the weight of the block is 100 N, what is the tension inthe ceiling rope?
A man standing on the ground exerts a horizontal force of 439 N when pushing on his friend standing on the skateboard.If the friend’s mass is 70 kg, the skateboard’s mass is 2 kg, and the coefficient of static friction between the friend’sfeet and the skateboard is 0.8, calculate the magnitude of the force of static friction between the skateboard and thefriend’s feet. You can assume that the wheels on the skateboard are good enough so that you can neglect frictionbetween the wheels and the ground.
In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force FAof magnitude 203 N, and Charles pulls with force F cof magnitude 188 N. Note that the direction of F c is not given. What is the magnitude of Betty's force F 3 if Charles pulls in (a) the direction drawn in the picture or (b) the other possible direction for equilibrium? Alex Charles 136° Betty
What are the magnitude of the two tensions?
A student's head is bent over her physics book. The head weighs P = 25.6 N and is supported by the muscle force Fm exerted by the neck extensor muscles and by the contact force Fc exerted at the atlantooccipital joint. Given that the magnitude of Fm is 60.0 N and is directed 35.0° below the horizontal. PN Find the magnitude of the contact force F. . |N
Consider pushing a lawn mower. Imagine that the lawn mower's handle was angled downward from the horizontal at 29.5 deg., and so when you push on the handle, you are actually pushing diagonally downward and forward at that angle. Assume that the push as 232.5 N. If the mass of the lawn mower is 23.4 kg and the effective coefficient of friction is 0.2, then calculate the magnitude of the lawn mower's acceleration.
Help
How much sand (in kgs) is needed to be added into the can in order to overcome friction from the table? The box and the can weighs 3.5 kg and 0.5 kg, respectively and the coefficient of static friction between the box and the table is 0.35. Assume the pulley is frictionless.
Calculate the forces in members BC, BE, and EF. Solve for each force from an equilibrium equation which contains that force as the only unknown. The forces are positive if in tension, negative if in compression. 3.0 m BC= Answers: BE= A 3.0 m EF= G i i i B 3.0 m 3.0 m F 1.9 m E 3.0 m 20.0 KN KN KN kN D