A force of 4 pounds compresses a 15-inch spring a total of 4 inches. How much work is done in compressing the spring 8 inches? Use Hooke's Law to determine the variable force. Work done:? ft-lb

Q: Problem: An ice skater moving at 9.0000 m/s coasts to a halt in 95.00 meters on an ice surface. What…

A: Given : vo = 9.0000 m/s v = 0 m/s (because finally skater comes to halt) s = 95.00 m g = 9.807 m/s2…

Q: Two blocks are connected by a (massless) string that passes over a (massless, frictionless) pulley…

A: Visualize the Problem:

Q: N5B.8 Suppose a glider slides without friction down a tilted air track. If it takes 3.0 s to slide…

A: Given Data: The time taken by the glider to slide down is t=3.0 sThe length of the inclined track is…

Q: 02 T3 M

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Q: A 10731kg helicopter accelerates upward at 2.230ms2. The spinning blades create an upward thrust…

A: Write the given values with the suitable variables. m=10731 kga=2.230 m/s2 Here, m is the mass and a…

Q: Two blocks connected by a rope of negligible mass are being dragged by a horizontal force as in the…

A: Given: m1=12 kgm2=16 kgF=60 N The free-body diagram of the objects is given below.

Q: The engine of a 1,301 kg car provides a forward directed force of 5,386 N. If the car accelerates at…

A: Given: The mass of the engine is 1301 kg. The forward applied force by the engine is 5386 N. The…

Q: A sign is hanging as shown. If m = 9.7 kg, 0, = 75°, and 02 = 35°, then find the tension in each of…

A:

Q: Table R(Q) im(A) 100 0.030 200 0.005 330 0.006 100 0.019 200 0.005 3. Using Kirchhoff's Rules,…

A:

Q: A boxer punched a punching bag weighing 300 N horizontally with a force of 200 N. The c.g. of the…

A:

Q: 1. You are trying to lift a box of weight W' vertically off the floor. You apply a force, Fup, on…

A: Given quantities: Weight of the box = W Applied force = Fup The normal force on the block = N   It…

Q: What tension force must be applied to block 2 (m;=10 kg) to move up while block 1(m,=5 kg) slides…

A: Write a given values of this question. m1=5kgm2=10kgμ=0.2θ=37∘

Q: 20. The block has a mass of 60 kg. The coefficient of static friction is 0.3. The minimum force, P…

A: Given that mass of the block is m=60kg the angle of inclination from the horizontal is α=40o A force…

Q: A woman driving a 2000 kg car at 15 m/s fully applies the brakes 50. m from a stoplight. If the car…

A: Given data: Mass (m) = 2000 kg Initial velocity (v0) = 15 m/s Final velocity (Vf) = 0 m/s Brakes…

Q: A pig has weight 500 N. It stands on a scale in an elevator, which reads 530 N. Which is correct? A.…

A: Given,  Actual Weight, W = mg = 500 N  Apparent weight A = 530 N

Q: 13. 54-kg box is sitting on the floor of a level railroad car which is moving forward with a speed…

A: mass of box = 54 kg speed = 25 m/sa = 5.6 m/s2

Q: A child of mass 43 kg stands on a scale inside an elevator. Select one or more: A. The scale…

A: Consider the acceleration of the elevator be a, and the speed of the elevator be v. Apply Newton’s…

Q: 7. You put a box on a skateboard and give it a quick push with a certain force. It starts to move.…

A: The correct answer is option (e)  Speed up for a little while, go at a constant speed for a while,…