Both girls arrive at the same time at opposite sides of a door that can swing open in  both directions. Without either of them knowing that someone is on the other side, Carly pushes  with a force of 1,000-N at a 60° angle 40-cm from the hinge, while Delaney pushes perpendicularly with a force of 650-N 65-cm from the hinge. In which direction does the door open? Demonstrate  and explain.

When you lift an object by moving only your forearm, the main lifting muscle in your arm is the biceps. Suppose the mass of a forearm with hand is 1.60 kg. If the biceps is connected to the forearm a distance of 2.4 cm from the elbow, how much force must the biceps exert to hold a 42 N ball at the end of the forearm at distance of 36.0 cm from the elbow, with the forearm parallel to the floor, in Newtons? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

A 65 kg person is standing on a 25 kg wood board as shown. How far can they go past the left support without the board tipping? 1.5 m 2.5 m Page 4 1.5 m of 4 ZOOM + Find the value of if the system is in equilibrium M

When you lift an object by moving only your forearm, the main lifting muscle in your arm is the biceps. Suppose the mass of a forearm with hand is 1.60 kg. If the biceps is connected to the forearm a distance of 2.1 cm from the elbow, how much force must the biceps exert to hold a 35 N ball at the end of the forearm at distance of 36.0 cm from the elbow, with the forearm parallel to the floor, in Newtons? Use g = 10.0 m/s2. Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

The figure below shows a claw hammer being used to pull a nail out of a horizontal board where ? = 27.3°. The mass of the hammer is 1.00 kg. A force of 165 N is exerted horizontally as shown, and the nail does not yet move relative to the board. Assume the force the hammer exerts on the nail is parallel to the nail. A hand uses a hammer to pull a nail out of the ground. The head of the hammer is curved and touches the ground at a single point of contact at the center of the head. The nail in the ground makes an acute angle ? clockwise from the vertical. The nail is hooked in the hammer claw 5.00 cm horizontally to the left of the hammer head's point of contact to the ground. The hand pulls the hammer handle horizontally to the right 30.0 cm above the ground with a force vector F.(a) Find the force exerted by the hammer claws on the nail.magnitude     kNdirection     ° above the horizontal (b) Find the force exerted by the surface on the point of contact with the hammer head.(  î +  ĵ)…

Help

A uniform meterstick is balanced at its midpoint with several forces applied as shown below. If the stick is in equilibrium, the magnitude of the force X in newtons (N) is? X 430 cm 400 N 320cm Upload Choose a File -240 cm 300 N

these questions go together they are in parts 1 and 2

Question 1:    #51   A 3.0-m-long rigid beam with a mass of 100 kg is supported at each end, as shown in Figure below.  An 80 kg student stands 2.0 m from support 1.   How much upward force does each support exert on the beam?

Hello, could you please help me with this question. I need second (In what direction must the force (tension) act on the yo-yo?), and third ( What exerts the force?)