5. A painter of mass m stands on a light platform of mass Mand pulls himself up by means of two ropes which hang over pulleys, as shown. If he pulls each rope with a force F, find his acceleration. M Looking at your answer, determine the minimum force Fmin the painter must apply in order to keep from falling.
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- Q11For the following problem, draw free-body diagrams and solve for the requested unknown. Use g = 9.8 m/s/s. A 22.6-N horizontal force is applied to a 0.0710-kg hockey puck to accelerate it across the ice from an initial rest position. Ignore friction and determine the final speed (in m/s) of the puck after being pushed for a time of .0721 seconds. PSYWA15.0 kg load of bricks hangs fromone end of a rope that passes over asmall, frictionless pulley. A 28.0 kgcounterweight is suspended from theother end of the rope . Thesystem is released from rest. What is the tension in the rope while the load is moving? How does the tension compare to the weight of the load of bricks? To the weight of the counterweight?
- I need help with part bQUESTION 15 Two blocks are attached by massless strings and accelerated to the right on a frictionless horizontal surface by TB. The masses are m₁ = 2.0 kg and m2 = 3.0 kg. The acceleration of the block 1 is 5.0 m/s². Match the answers with questions. TA TB m₁ m₂ A. 25 N, to the left ✓ Tension force TA on block 1 B. none of the given ✓ Tension force TA on block 2 C. 15 N, to the left D. O E. 25 N, to the right F. 15 N, to the right G. 10 N, to the right H. 10 N, to the leftq11 A runner, Ricky ASHER, is travelling at 8.47 m/s. Turning into the final straight, they accelerate at a constant 1.0 m/s2. Their mass is 71 kg. Neglecting air resistance, what vertical force (in kN) does the track exert on them? Enter the numerical part of your answer, rounded to two significant figures.
- What’s the answer to A B and C?In the figure shown a cord of tension T joins m, and m2 (m2 > m,). Assume the cord is light, taut and un-stretchable. A force F acting on m2 makes the system accelerate forward. What is the direction (if any) of the tension force T acting on m2? T. m2 F my O None, since T does not act on m2, only on m, Tis directed forward (to the right). O T is directed backward (to the left). KA car of mass m=1000 kg starts moving from rest at a point Aon a smooth horizontal surface. The car moves under theaction of an engine force �⃗ of magnitude F=2000 N and ofdirection parallel to the surface. It reaches point O that is 70 maway from A, with a velocity �⃗!.a. Draw the free body diagram of the car.b. Using the Second Law of Newton, determine the acceleration of the car.c. Calculate the normal force acting on the car.d. Calculate the final velocity at O.
- L. Fo A block of mass 3.00 kg is moving in the positive x direction, across a rough surface (UK=0.11) with an initial velocity of 6.00 m/s and is acted upon by a force Fo=4.00 N, applied in the negative x direction. Select the correct FBD for the mass.A 2.00-kg object B is connected with a string to a 3.00-kgobject A, which is connected with a second string over a massless, frictionless pulley to a 8.00-kg object C. The strings have negligible mass and do not stretch, and the level tabletop is frictionless. Calculate the tension ?1. ?1= N Calculate the tension ?2. ?2= N Calculate the acceleration ? of the system. ?= m/s23. a. Explain, with a free body diagram, how an object can experience a zero net force when at least three forces are acting on it.