a bridge across a small stream is made by supporting a 10m long log with a mass of 75kg with ropes tied at the ends of the log to the tree on the banks. the rope on the right makes a 25 degree angle with the ground. the rope on the left makes a 20 degree angle with the ground. a 25kg child us standing 7.5 m from the left bank. write the net force equation for the y direction. write the net force equation for the x direction. write the torque equation (use the left end of the log as the axis of rotation).

Q: e) A student from the future is pulling the same toboggan up a sand dune on Mars that has the same…

A:

Q: A box of unknown mass is 5 meters up a frictionless ramp and is let go from rest. Assume the ramp…

A:

Q: Abel is pulling a cart, but he's pulling on a handle that causes his force to be applied to the cart…

A:

Q: direction

A: The diagram shown below represent the situation given in the problem. Therefore writing the…

Q: A horizontal force of 729 N is needed to overcome the force of static friction between a level floor…

A: Given: The applied force is 729 N. The coefficient of kinetic friction is 0.08. The mass of the…

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.4 m/s2. If the river is…

A:

Q: A woman is straining to lift a large crate, without success. It is too heavy. We denote the forces…

A: In an equilibrium, The net force acting on an object is zero The object will respond to a newer…

Q: A car is traveling along at 20 m/s when it suddenly slams on its brakes. If the mass of the car is…

A: It is given that, u=20 m/sm=1000 kgF=2000 N

Q: A child’s model boat, when placed in a creek, accelerates from rest at 1.51 m/s2. If the river is…

A: Initial velocity = 0 msAcceleration (a) = 1.51 ms2Force (F) = 0.79 N

Q: A 6.00 kg sled is pulled across a frictionless horizontal surface by a rope that makes a 42 degree…

A:

Q: 21. A canal barge is being pulled along a canal by two horses, one on either side of the canal. One…

A:

Q: e thing does not move. Draw a free body diagram. What is the minimum coefficient of friction…

A:

Q: A solid uniform cylinder with mass 8.25 kg and diameter 15.0 cm rotates at 220 rpm. Its angular…

A: In case of linear momentum it is calculated by product of mass and velocity. Similarly, in…

Q: The net force on the 14.5 kg baby stroller is given as 35.0 N horizontal to the left. The force of…

A: In the FBD  Fm = force due to mother  in second part when the F force is removed then the friction…

Q: You hang a book bag on a spring scale and place the bag on a platform scale so that the platform…

A: Answer:   The magnitude of the force that exerts on the bag is given as:

Q: A 100 car train is pulled by a 200T locomotive. Assume that the cars are all identical and weigh…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: A car traveling at 29.6 m/shits a bridge abutment. A passenger in the car, who has a mass of 57.0…

A: From the equation of motion,

Q: A physics student sits in a chair. The Earth pulls down upon the student's body. Identify the other…

A: According to the Newton's Third law of motion, for every action, there is an equal and opposite…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

A:

Q: A 50.0 kg girl and a 100 kg boy, stand on a frictionless frozen lake at a distance 6.0 m apart.…

A: mass of girl = 50 kg mass of boy = 100 kg distance between girl and boy = 6 m force exerted by boy…

Q: Consider the situation shown where two boxes of mass mi and m2 are placed on a plane tilted at angle…

A: The free-body diagram of the block m2 is shown below: N2 is the normal force on the block m2 due to…

Q: A 55.8 kg person falls 7.4 m from a storage building and lands straight legged in some mud. The…

A: Given,mass m=55.8kgheight h =7.4m

Q: A 40 kg object's initial velocity is 5 m/s right. After 3 seconds, the velocity is 20 m/s right.…

A: Given data: Mass of object is, m=40 kg. Initial velocity of object is, u=5 m/s. Final velocity of…

Q: A vertical spring has a length of 0.175 m when a 0.25 kg mass hangs from it, and a length of 0.725 m…

A: The length of the vertical spring is l1 = 0.175 m The hanging mass is m1 = 0.25 kg. The length of…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.